The interjection in the sentence is "oops" (letter D)
Explanation:
Humanities are academic disciplines that study aspects of human society and culture. In the Renaissance, the term contrasted with divinity and referred to what is now called classics, the main area of secular study in universities at the time. Today, the humanities are more frequently defined as any fields of study outside of professional training, mathematics, and the natural and social sciences.[1]
She should repeat the experiment to see the results.
Answer: sometimes
Explanation: it depends on the qualifications and validity of their statement. Does their opinion bring value to the conversation?
