Step 1: Start from Column II:
Read each statement in Column II and ask which idea it describes.
Step 2: Statement X: ensures long-term survival of all life forms:
Survival of all life over a long time is the aim of sustainable existence. It means we use resources so that nature can support life for ever.
So X goes with 2.
Step 3: Statement Y: prevents concentration of resources in a few hands:
When resources stay with a few people, others are left without. Spreading them fairly stops this. That is equitable distribution.
So Y goes with 1.
Step 4: Statement Z: balances current development with conservation for the future:
A plan that grows the economy now and still saves resources for later is resource planning.
So Z goes with 3.
Step 5: Compare with the options:
The pairs are 1-Y, 2-X, 3-Z. Option A is the only one with all three pairs.
In options B and C every pair is wrong. In option D only the first pair is right, because 2 and 3 are interchanged.
A quick way to remember: fairness goes with 'few hands', survival goes with 'all life forms', and planning goes with 'current development and the future'.
Final Answer:
The pairs 1-Y, 2-X and 3-Z match option A.
\[ \boxed{\text{A. 1-Y, 2-X, 3-Z}} \]