IDNLearn.com: Where your questions meet expert advice and community insights. Ask any question and get a thorough, accurate answer from our community of experienced professionals.

Based on the context of the sentence, what is most likely the meaning of the underlined word?
The study seems to suggest that timorous people suffer from stress more frequently than their more aggressive peers.
• A. Rigid
• B. Observed
• C. Numerous
• D. Apprehensive