Select the sentence containing the homonym of the highlighted word:
The guards stood in pike formation along the causeway.

Correct option is A

The correct answer is option (a).
Explain the right answer in detailed form: In the given sentence, pike refers to a weapon/spear used in military formation. A homonym is a word that has the same spelling/pronunciation but a different meaning. In option (a), pike means a fish (a freshwater predatory fish), which is a completely different meaning of the same word—hence it is the homonym used correctly.
Explanation of context of question: “pike formation” indicates a spear-formation, while “pike from the lake” indicates the fish.
Other options are incorrect because (Explanation of all options in detail):
· (b) “placed on the pike” still refers to a sharp stake/spear—weapon sense, not a different meaning category like fish.
· (c) “infantry pike” clearly means the weapon; same meaning as in the question.
· (d) “pike gleamed” again suggests the weapon (metal), not the fish.