J.R. S. answered 05/07/17
Tutor
New to Wyzant
To show the "correct" covalent bonding, one would need to draw the Lewis dot structures. Is that what the question wants? Very difficult to do here, but the following is a description and you'll have to draw it.
A) C in the center with a single bond to each of 4 Cl atoms around the C. Then put 3 lone pairs of electrons around each Cl atom
B) O in the center with a single bond to each of 2 H atoms. Then put 2 lone pairs of electrons around the O atom
C) P in the center with a single bond to each of 3 Br atoms. Then put 3 lone pairs of electrons around each Br atoms