Instructions find five run-on errors in this passage. to identify a fused sentence, drag and drop the fused sentence icon over the word before or the word after the space where the clauses should split into complete sentences. to identify a comma splice, drag and drop the comma splice icon over the word before or the word after the incorrectly placed comma. apolo ohno entered short track speed skating competitions and was recognized as olympic material. he won the u. s. championship at age 14 he was motivated to train hard for the olympics. but when he went home to seattle, he took up with his old friends. out of shape, he finished last in the olympic trials his father, yukio, was disgusted and desperate. instead of driving his son home, he dropped him at a rented cabin. it had food and heat but no phone or television, he told apolo to think about what he wanted to do. yukio would come back for him in a week. apolo decided to get serious about his life and his skating he told his father that he didn't want to end up like his friends in seattle. this time when he started training for the olympics, he didn't let up. his hard work paid off in salt lake city, he won the gold medal in the 1500-meter event and silver in the 1000-meter.

Run-on sentence mistakes occur when two or more independent clauses are not linked correctly.

Run on sentences are divided into fused sentence (two independent clauses are together without any sign of punctuation or coordinating conjunction that divides them) and comma splice (two independent clauses joined just  by a comma).

Explanation:

Fused sentence (no linking word or punctuation mark separating the independent clauses before “he was motivated”): He won the U.S. championship at age 14 he was motivated to train hard for the Olympics.

Fused sentence (no linking word or punctuation mark separating the independent clauses before “his father”): Out of shape, he finished last in the Olympic trials his father, Yukio, was disgusted and desperate.  

Comma splice (only comma separating independent clauses, a linking word should be added after the comma): It had food and heat but no phone or television, he told Apolo to think about what he wanted to do.  

Fused sentence (no linking word or punctuation mark separating the independent clauses before “he told”):  Apolo decided to get serious about his life and his skating he told his father that he didn't want to end up like his friends in Seattle.  

Comma splice (only comma separating independent clauses, a linking word should be added after the comma): His hard work paid off in Salt Lake City, he won the gold medal in the 1500-meter event and silver in the 1000-meter.

allusion   is the right answer