On the set of students of a school, (aRb) if (a) and (b) study in the same class. Choose the correct option about transitivity of (R).

Correct answer: It is transitive

Step 1: If (a) and (b) are in the same class, and (b) and (c) are also in the same class, then (a) and (c) are in that same class. Step 2: So ((a,c)) belongs to the relation, and transitivity holds. Step 3: Same-group relations often form equivalence relations.