Which of the following sentences correctly uses a pronoun to create emphasis? O He, Jacob Smith, studied for 10 hours.
O He himself wrote the 20-page paper.
O He and they trained for the marathon.
O Himself worked for weeks on the project.

The correct answer is B. He himself wrote the 20-page paper.

Explanation:

Pronouns such as himself, yourself, themselves, or myself, which are known as intensive pronouns, are used to emphasize the subject of a sentence, usually by placing the pronoun right the subject or main pronoun. This can be seen in the sentence "He himself wrote the 20-page paper" because the pronoun "himself" emphasizes the action "wrote" performed by "he", which is the main subject of the sentence. According to this, it is in the second sentence a pronoun creates emphasis.

the genotypes would be 50% bb and 50% bb

the phenotypes would be 50% brown and 50% white. hope this : )