The correct answer is indeed Option 1.

In this matching exercise, the objective is to correctly link the crop type in List I with the geographical conditions in List II that they are best suited to thrive under.

Starting with Barley (I), it is typically grown in climates that are cool, and can adapt to poorer soil quality, thus we match I with B.

Moving on to Rice (II), it is predominantly grown under warm and moist conditions, which generally are accompanied by higher altitudes. Thus, Rice (II) matches with C in List II.

Lastly, we have Millets (III). Millets are resilient crops that can thrive in harsh conditions, particularly hot and dry climates with poor soil. Hence, Millets (III) aligns with A from List II.

Option 1, namely I-B, II-C, III-A correlates perfectly with the above explanation and hence is the correct answer.

We can therefore conclude that the provided answer is correct.