Which of the following expressions is equal to 5 ?
(A) $(2 \times 3)^{2}$
(D) $3^{2}-2^{2}$
(B) $3+2^{2}$
(E) $(3+2)^{2}$
(C) $2^{3}-1$
Evaluating each of the expressions,

(A): $(2 \times 3)^{2}=6^{2}=36$

(B): $3+2^{2}=3+4=7$

(C): $2^{3}-1=8-1=7$

(D): $3^{2}-2^{2}=9-4=5$

(E): $(3+2)^{2}=5^{2}=25$,

we see that only expression (D) is equal to 5 .

ANswer: (D)