What is the molecular geometry around the central atom?

Jenny S: What is the molecular geometry around the central atom?
A molecule consists of a second period central atom with four other atoms singly bonded to it. There are no additional electrons on the central atom, but the other atoms have lone pairs. What is the molecular geometry around the central atom?

a. Linear
b. Trigonal planar
c. Tetrahedral
d. Trigonal pyramid
e. Angular (bent)

Answers and Views:

Answer by JG-Hunter
tetrahedral

Answer by zetsu
tetahedral