The numberof sigma $$(\sigma)$$ and pi $$(\pi)$$ bonds in pent-2-en-4-yne is:

A

8 $$(\sigma)$$ bonds and 5 $$(\pi)$$ bonds

B

11 $$(\sigma)$$ bonds and 2 $$(\pi)$$ bonds

C

13 $$(\sigma)$$ bonds and no $$(\pi)$$ bonds

D

10 $$(\sigma)$$ bonds and 3 $$(\pi)$$ bonds