Why do authors use parallel structures?

parallel structure is used to create rhythm or balance in a writer's work.
parallel structure is not used to create rhythm or balance in a writer's work.
parallel structure is used to destroy rhythm or balance in a writer's work.
parallel structure is used to obliterate rhythm or balance in a writer's work.

Based on the text and the map, which labeled location sends products to shihr? the travels of marco polo and study the map.

The basketball crashed against the backboard, and point guard sheena lunged for it. as she snatched the ball out of mid-air, the crowd cheered, chanting encouragement for her team, the monarchs. so far, the game had been a disaster. with 15 seconds left to go in the final quarter, the monarchs were 2 points shy of victory. what main idea do the details in the passage suggest? the point guard sheena was not a very good player. the monarchs had never lost a basketball game. the monarchs were worried about losing. the crowd was not supporting the monarchs.

King claudius has resolved to do what (besides send hamlet to england)? what does this reveal about his character?