Answer:
B: Mi padre la ayuda.
Explanation:
Madre is a feminine word, meaning its direct object pronoun would be la. "Lo" would be for masculine nouns, and option c just says "My father helps", not indicating who or what he helps.
I would say 3, 5 or 6
3: is its a shame that you dont feel well, but we can probably cross that out considering its not written correctly, dosent sound right,
5: I suggest you come early
6: I recommend that you eat a lot of fruit
i would go with 6