Bernice was waiting for a letter of support from Alice Delany, PhD, with the United Way Foundation in Fort Worth, Texas. Choose the best revision of the sentence above.

a. Bernice was waiting for a letter of support from Alice Delany, PhD, with the United Way Foundation in Fort Worth, Texas.
b. Bernice was waiting for a letter of support from Alice Delany, PhD with the United Way Foundation, in Fort Worth Texas.
c. Bernice was waiting for a letter of support from Alice Delany PhD, with the United Way Foundation, in Fort Worth Texas.

Best Version:

a. Bernice was waiting for a letter of support from Alice Delany, PhD, with the United Way Foundation in Fort Worth, Texas.

Explanation:

Commas are used to enclose items in professional titles and academic.  And the second element in a geographical name is usually separated by the use of a comma.  The placement of commas in a sentence follows some usage rules.  By punctuating the academic title "PhD," there is a separation of the title from the titleholder.  In the same light, the separation of the first geographical name indicates that "Forth Worth" is a part of "Texas."  Without the comma, it will look as if there was an absolute location named "Forth Worth Texas," and not that "Forth Worth" is in "Texas."

600 grams is the answer

eli whitney was an american inventor best known for inventing the cotton gin. this was one of the key inventions of the industrial revolution and shaped the economy of the antebellum south.