The correct option is C so
Here, 'so' is correct because it implies also. Here, she is hungry and 'also' am I (hungry).
'Nor' is incorrect because it is used before a positive verb to agree with something negative that has just been said.
'Neither' is incorrect because it implies not one nor the other of two things or people.
'Too' is incorrect because it is used before adjectives and adverbs to say that something is more than is good, necessary, possible, etc.