what is the molecular geometry of $ch_4$?\na seesaw\nb trigonal pyramidal\nc square planar\nd tetrahedral

what is the molecular geometry of $ch_4$?\na seesaw\nb trigonal pyramidal\nc square planar\nd tetrahedral
Answer
Brief Explanations:
In $CH_4$, carbon has 4 bonding pairs and no lone - pairs. According to VSEPR (Valence - Shell Electron - Pair Repulsion) theory, the molecular geometry is tetrahedral to minimize electron - pair repulsions.
Answer:
D. tetrahedral