Whaaaaaat? What does that mean
Answer:
The pigs reduce the animals’ rations yet again.
The pigs have Boxer killed, but they lie about him dying in the hospital.
The animals rebuild the windmill with walls twice as thick as before.
The pigs start drinking whiskey to excess and wearing green ribbons.
Animal Farm is declared a republic, and Napoleon is elected president.
Explanation:
A. is wrong because (could'nt) is not the proper way to write the contraction for 'could not' it should be 'couldn't', also there is no need for the apostrophe after the word, yours it already possessive without the apostrophe.
B. is wrong because 'couldnt' is not the correct way to write the contraction for 'could not', it's couldn't.
C. She couldn't remember which suitcase was your's. is wrong because you don't need the apostrophe in your's because it possessive is, yours.
The sentence that contains no errors is D. She couldn't remember which suitcase was yours.
Hope this helps. :)