At Which of the Following Latitudes Is It Possible for the Sun's

Multiple Choice

At which of the following latitudes is it possible for the Sun's rays to hit the ground perpendicular to the ground at some point during the year?

A) 87 $\degree$
B) 55 $\degree$
C) 42 $\degree$
D) 33 $\degree$
E) 20 $\degree$