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

Showing astute powers of judgement; clever and judicious

Shrewd

The word that can be used as a one-word substitute for "showing astute powers of judgement; clever and judicious" is shrewd.

• Shriek is a loud, high-pitched cry.
• Shrift is confession or absolution.
• Shrewd is clever and judicious.
• Shrike is a bird with a long, sharp beak.

Shrewd is the most appropriate word for the given group of words because it specifically refers to someone who is clever and has good judgment. It is derived from the Old English word scrēad, meaning "to perceive keenly."