Question

Which one of these sentences might best end in an exclamation point?

Answer 1

A. its the man again

this is referring that she saw the man again which is a surprise.
the rest of the sentences are statements showing no sense of surprise in them. An exclamation means to have a sense of surprise therefore stating that a is the correct answer.<span />

Answer 2

A
This is because it is the most exciting and also could be a but disturbing, like maybe he is following you!