Given below are 3 sentences, one or more of them is incorrect. Identify the one(s) that are incorrect and point out the incorrect section. 

I. Mini wanted to quit her job, (a)/ as she had been a secretary (b)/ for far too long and (c)/ wanting to try something new. (d)

II. Sally had a hard time (a)/ fitting into her new school (b)/ as it was fills with the (c)/ children of rich industrialists. (d)

III. Christina has only one (a)/ purpose in life as a mermaid- (b) moving to her own planet, and (c)/ finding the love of her life. (d)