The word mind is not the most effective word to use in sentence 41. Select the word that should replace mind in this sentence He helped invent useful medical and aviation technology, and in the 1940s, he offered his ___ A. cleverness B. maturity C. compliance D. expertise to the U.S. military during World War II.
The word that should replace "mind" in this sentence is D. expertise.
Rewritten sentence: He helped invent useful medical and aviation technology, and in the 1940s, he offered his expertise to the U.S. military during World War II.