Question

can I go to party choose the correct to answer​

Answer 1

Answer for the question is To

Answer 2

Question - can I go to party (to / too /two) choose the correct answer

Answer - The correct answer is - Can I go to party too?

The correct word, hence, will be too. 'To' is a preposition, which relates two people or things. 'Too' is an English word which holds meaning 'also'. 'Two' is a number which states quantity of things or people.

The question depicted does not require any relation but states inclusion in permission. Hence, the word too is appropriate here.