State whether the following statement is true or false. Justify your answer.
${2, 6, 10}$ and ${3, 7, 11}$ are disjoint sets.

(A) True.
Two sets are disjoint if their intersection is the empty set,denoted by $\varnothing$.
Let $A = \{2, 6, 10\}$ and $B = \{3, 7, 11\}$.
The intersection $A \cap B = \{2, 6, 10\} \cap \{3, 7, 11\} = \varnothing$.
Since the intersection is empty,the sets are disjoint.