Answer
See explanation below as this answer can be found by looking at model a, b and c.
Work Step by Step
A. Count all the valence electrons of C (valence = 4), H (valence = 1) and Cl (valence = 7).
B. We must count all the valence electrons of S (valence = 6), and H (valence = 1).
C. Count all the valence electrons of C (valence = 4), H (valence = 1) and N (valence = 5).
