Select the option that can be used as a one-word substitute for the given group of words.

Sharpness and accuracy of judgment

Acumen

The correct option is acumen. It means "keenness and depth of perception, discernment, or discrimination especially in practical matters." The other options are not correct substitutes.

• Experience is the knowledge or skill acquired by someone through practical involvement in a particular activity.
• Estimation is the process of judging the value, worth, or significance of something.
• Knowledge is the understanding of or familiarity with a particular subject or area of study.