Statement — “The sarpanch called a meeting of all family heads to discuss the acute shortage of drinking water in the village.”\nAssumptions:\nI. The sarpanch had previously called such meetings to discuss village problems.\nII. Most family heads may attend the meeting called by the sarpanch.

Introduction / Context:
Calling a community meeting presumes that invitees are likely to attend, otherwise the action would be ineffective. It does not rely on having called similar meetings before.

Given Data / Assumptions:

• Statement: Sarpanch calls a meeting on water shortage.
• Assumption I: There were earlier meetings for various problems.
• Assumption II: Most heads are likely to attend.

Concept / Approach:
For the call to be practical, a reasonable expectation of attendance (II) is necessary. Prior history (I) is optional and not required.

Step-by-Step Solution:
1) Practicality test: without attendance, the call loses purpose → II.2) Whether such meetings occurred earlier is irrelevant to this call’s logic.

Verification / Alternative check:
Even if this is the first such meeting, it still makes sense if attendance is expected.

Why Other Options Are Wrong:
Only I/Either/Both/Neither do not capture the minimal necessity.

Common Pitfalls:
Equating tradition with necessity. Feasibility depends on likely participation.

Final Answer:
Only Assumption II is implicit.