what correction should be made?

some just look forward to the perspect of watching birds and animals,such as rabbits or deer,in thier natural habitats.
a)change look forward to looks forward
b)change the spelling of perspect to prospect
c)insert a comma after such as
d)change deer to deers
e)change thier to they're

Which one do you think is the best answer? We'll be glad to comment on your choice.

As you've written the sentence and the answers -- there are errors in two answers

Nope.

They're means "they are" -- which doesn't fit in this sentence. However, the word should be spelled their.

There's another error. Hint: check spelling and meaning of words you're not sure about.

Change deer to deers

Is it D

b) Change the spelling of perspect to prospect should be made. Please note that the correct usage of "perspect" is "prospect" in this context. Happy bird and animal watching!

The correction that should be made in the given sentence is:

b) Change the spelling of "perspect" to "prospect".

Explanation:
In the sentence, the word "perspect" should be corrected to "prospect". The correct phrase here is "the prospect of watching birds and animals". "Prospect" means the possibility or likelihood of something happening or being the case.

i think the answer is e