Idioms – Choose the option that best explains the meaning of the highlighted expression in context. Sentence: Although he has failed in the written examination, he is using “backstairs influence” to get the job.

Introduction / Context:
The phrase “backstairs influence” is a pejorative idiom that implies gaining advantage through secret, underhand, or improper channels. In recruitment, relying on backstairs influence contradicts merit-based selection, especially after failing an examination.

Given Data / Assumptions:

• Target expression: “backstairs influence.”
• Context: securing a job despite failing the written test.
• Need: a paraphrase that captures secrecy and unfairness.

Concept / Approach:
“Backstairs” evokes hidden corridors and private access, symbolising clandestine manoeuvres. The correct option must therefore include both secrecy and illegitimacy. Political influence or generic “backing” may be legitimate; “deserving and proper” directly contradicts the idiom’s negative evaluation.

Step-by-Step Solution:

Verification / Alternative check:
Paraphrase: “he is trying to use secret and unfair influence to get the job.” The sentence remains coherent and matches the idiom's standard gloss in dictionaries.

Why Other Options Are Wrong:

• Political influence: Could be legitimate lobbying; does not imply secrecy or unfairness.
• Backing influence: Vague and not necessarily improper.
• Deserving and proper influence: Opposite of the idiom's sense.

Common Pitfalls:
Equating any kind of help or networking with backstairs influence. The idiom specifically attacks the unethical, hidden route.

Final Answer:
Secret and unfair influence