Which of the following scentences uses possessive nouns correctly?
a. the two sisters' gift to a charity's drive was a pile of hand-sewn children's clothing.
b. the two sister's gift to the charitys' drive was a pile of hand-sewn childrens' clothing.
c. the two sister's gift to the charity's drive was a pile of hand-sewn children's clothing.
d. the two sisters gift to the charitys' drive was a pile of hand-sewn childrens' clothing.

A, sister’s is short for ‘sister is,’ which does t make sense in the context of the sentence. D doesn’t have any punctuation, which is actually what it need to technically be an actual word. So A is your answer.

The details about the statues, i believe, are that they're carved from blocks of igneous stone, many of them are partially buried under the ground which to preserve and protect them from the harsh environment on easter island, and many of the facial features have washed away. also, the most well-preserved one is at the british museum in london.these are just guesses from what i can see and what i think i read correctly. i'm sorry i couldn't be more .