Choose the most appropriate to complete the given sentence.

He behaved in a _________ manner.

cowardly

The correct answer is Option (4) - cowardly

He behaved in a _________ manner.

We are looking for a word that correctly completes the sentence — ideally an adjective used in an adverbial sense or an adverb.

• Option 1: Anger
  → This is a noun.
  → Incorrect: “in an anger manner” makes no sense.

• Option 2: Fool
  → Also a noun.
  → “in a fool manner” is grammatically incorrect.

• Option 3: niggard
  → This is a noun, meaning a miser (dated/rare usage and offensive in modern contexts).
  → Doesn’t fit the sentence structure.

• Option 4: cowardly
  → This is an adjective that can describe manner.
  → “He behaved in a cowardly manner.”  Correct and meaningful.