Question

Choose the word for the blank that best fits the meaning of the sentence as a whole:
The armed forces used air defence mechanisms to _ _ _ _ _ _ armed drone and missile attacks from another country.

• A. discourage
• B. foster
• C. avoid
• D. thwart

Hint:

Words like prevent, stop, block, or thwart often fit defence or security contexts.

Answer 1

The Correct Option is D

Concept: The correct word should convey prevention or stopping an attack. Explanation: The word \textit{thwart} means to prevent or stop something from succeeding. Air defence systems are used to stop attacks, so this word fits perfectly. Other options do not convey strong prevention: \begin{itemize} \item discourage = reduce likelihood \item foster = encourage (incorrect meaning) \item avoid = stay away from (not precise) \end{itemize} Thus, option (D) is correct.