Which of the Following Concerning $\sigma$ And $\pi$ Bonds Is/are Correct?
1)Sigma Bonds May Only Be Formed from Correct

Multiple Choice

Which of the following concerning $\sigma$ and $\pi$ bonds is/are correct?
1) Sigma bonds may only be formed from unhybridized orbitals.
2) Pi bonds are formed from unhybridized p orbitals.
3) A pi bond has an electron distribution above and below the bond axis.

A) 1 only
B) 2 only
C) 3 only
D) 1 and 2
E) 2 and 3