Answer: B. The reflexive pronoun is formed with -self (singular) or selves (plural) that <em>refers to the subject</em>. We use the reflexive pronomes (myself, yourself, themselves etc) when the <em>subject and the object are the same</em>. For example: <em>Mark cut himself when he was shaving</em>. Mark did the action, and also was affected by the same action. The use of <em>myself, herself etc</em> for <em>emphasis</em> is called <u><em>emphasizing pronouns.</em></u>
Similarities: They are both scientists, they are both wearing lab coats, they are both in a laboratory. Differences: One's a boy, one's a girl, the boy scientist has equipment in front of him, The girl has a door behind her.