3. Among the following four propositions:
(1) Two triangles are congruent if they have two sides and one angle correspondingly equal;
(2) Two triangles are congruent if they have two angles and one side correspondingly equal;
(3) Two triangles are congruent if they have the same perimeter and area;
(4) Two triangles are congruent if five elements (sides and angles) are correspondingly equal.
Among them, the number of correct propositions is ( ).
(A) 1
(B) 2
(C) 3
(D) 4
3. A.

Obviously, (1) is not true, (2) is true. (3) is not true, for example, in $\triangle A B C$ and $\triangle A^{\prime} B^{\prime} C^{\prime}$, $A B=A C=29, B C=40 ; A^{\prime} B^{\prime}=A^{\prime} C^{\prime}=37, B^{\prime} C^{\prime}=24$, the height $A D=21, A^{\prime} D^{\prime}=35$, the perimeters of both triangles are 98, and the areas are both 420 (square units), but they are not congruent. (4) is also not true, for example, in $\triangle A B C$ and $\triangle A^{\prime} B^{\prime} C^{\prime}$, $\angle A=\angle A^{\prime}, \angle B=\angle B^{\prime}, \angle C=\angle C^{\prime}, a=\frac{3}{2}, b=1, c=\frac{2}{3}, a^{\prime}=\frac{9}{4}, b^{\prime}=\frac{3}{2}, c^{\prime}=1$, but these two triangles are not congruent.