Which measurement is the best estimate for the length of a clothespin?

Question

a.9 mm.
b.9 cm.
c.9 m.
d.9 km.

Answer 1

What do you think?

Answer 2

b.9cm

I had this question on my math quiz.

Answer 3

its 9mm:)

Answer 4

9 cm

Answer 5

9mm