Lines t and s (picture attached)

which of the following pair of angles are vertical?

A. 3 and 4

B. 1 and 3

C. 3 and 2

D. 4 and 1

Lines t and s picture attachedwhich of the following pair of angles are verticalA 3 and 4B 1 and 3C 3 and 2D 4 and 1 class=