The word 'mother' should be capitalised in place of someone's name. However, since you have already mentioned that she is called 'Sonya', the word 'mother' should not be capitalised.
Hercules killed his family so Hercules had to complete twelve labours and Hercules was contrite.
A is correct answer.
Reinforcement is the exercise in a relationship.
Hope it helped you.
-Charlie
B
(“an instance of using a comma to link two independent clauses (which should instead be linked by a colon, semicolon, or conjunction), as in: he loves cooking, he's great at making curries.”)