Idiom-to-sense analogy: “off-hand is related to PERFUNCTORY” in the same way as “Above Board” is related to …

Introduction / Context:
Idiomatic analogies pair an expression with its closest sense. “Off-hand” suggests something done casually or perfunctorily. “Above board” means open, honest, and without deception.

Given Data / Assumptions:

• off-hand → perfunctory (done without much preparation).
• Above-board → honest, transparent.

Concept / Approach:
Select the most direct sense-equivalent noun: “Honesty.”

Why Other Options Are Wrong:

• Integrity is close but denotes a broader moral trait; “Honesty” is the precise counterpart of “above board.”
• Guide/Competition/Secrecy do not capture the idiom’s meaning.

Final Answer:
Honesty