The answer would be A.
The question you have to ask is, is it possessive?
Yes it is possessive.
The wing is owned by the bird. Its wing was broken.
It's means it is or it has.
It's would not make sense in this case because you can not put it is or it has into this sentence.
Maybe some medical condition :)
The Answer is B, it says weekly meeting and every Friday. the sentence would still make sense if one of those was taken out.
Answer:
c
Explanation:
It helps you understand and remember what you read
Answer:The speech reflected lincolns redefined belief that the Civil War was not just a fight to save the Union, but a struggle for freedom and equality for all.
Explanation: