Question

Limited __________ of resources and their limited potential is everybody's __________.

• A. assess, responsibility
• B. reach, game
• C. availability, concern
• D. area, knowledge

Hint:

When solving, match logical pairs: "limited availability" and "common concern" form a natural and meaningful collocation.

Answer 1

The Correct Option is C

Step 1: The sentence speaks about scarcity of resources and the resulting responsibility. 
Step 2: Among the options:
- (a) "assess, responsibility" → grammatically wrong.
- (b) "reach, game" → meaningless. 
- (c) availability, concern → correct, as limited availability of resources is a matter of concern for all. 
- (d) "area, knowledge" → contextually irrelevant. 
Step 3: Thus, the correct choice is option (c). \[ \boxed{\text{availability, concern}} \]

Answer 2

Instead of judging each blank word alone, check what noun each candidate word can grammatically form after "Limited ___ of resources" and whether the second blank logically completes "is everybody's ___."

1. Option A: "assess" is a verb, not a noun, so "Limited assess of resources" is grammatically impossible; the option fails before the second blank is even tested.
2. Option B: "Limited reach of resources" is grammatically fine, but "is everybody's game" turns the sentence into an idiom about competition, which has no logical connection to scarcity of resources.
3. Option C: "Limited availability of resources" correctly names the scarcity being discussed, and "is everybody's concern" logically follows, since scarce resources naturally worry everyone.
4. Option D: "Limited area of resources" is an odd, almost meaningless noun phrase, and "everybody's knowledge" does not connect to a problem of scarcity.

Only option C produces a grammatically sound noun phrase in the first blank and a logically consistent completion in the second.

Hence, the correct answer is availability, concern.