Question

which of these helps the reader determine the credibility of the selection?a the source discusses biology, something based in science.b the passage contains challenging and technical vocabulary.c neuroscience is one of the most challenging fields of study.d the author has studied the science being described in the text.

Explanation:

To assess a source's credibility, verifying if the author has relevant expertise (like studying the subject in the text) directly supports their authority on the topic. The other options do not address credibility: option A only notes the science topic, option B refers to text difficulty, and option C states a field's challenge level, none of which relate to the source's trustworthiness.

Answer:

D. The author has studied the science being described in the text.