Critical Reasoning — Assumptions Suggestion in a company: “Blue tie would help us identify our staff from others.” Which assumptions are implicit in this suggestion?

Introduction / Context:
A practical workplace suggestion proposes a uniform marker (a blue tie) to distinguish staff from non-staff. We must identify what must be true for this suggestion to be sensible.

Given Data / Assumptions:

• I: The company needs to identify its staff.
• II: Blue tie is the latest fashion.

Concept / Approach:
A uniform element (tie color) is recommended to solve an identification need. Fashion trends are irrelevant to the identification problem.

Step-by-Step Solution:
1) The suggestion presupposes there is an operational need to distinguish employees from visitors/contractors (I).2) Whether blue is fashionable (II) does not affect identifiability; any consistent and distinctive marker would work.3) Negate I: If no need to identify staff exists, the recommendation is pointless.4) Negate II: Even if blue is unfashionable, it could still function well as an identifier.

Verification / Alternative check:
Uniforms, badges, or color codes are standard solutions to identification needs; their utility rests on the need, not on fashion.

Why Other Options Are Wrong:

• Only II / Both / Either: Fashion is not a required assumption.
• Neither: I is clearly required to justify the proposal.

Common Pitfalls:
Do not confuse selection of a color (an arbitrary choice) with the functional assumption of needing identification.

Final Answer:
Only assumption I is implicit