When deciding between a contraction and a pronoun, such as it's and its, a tip is to read the sentence and a. try the contraction in its original form. b. not pronounce the word in question. c. decide if it falls in the subject or the predicate. d. think of other words that might fit there.

C. Decide if it falls in the subject or predicate.

Explanation:

An apostrophe with the pronoun it and forming the contraction "it's" while simply adding an "s" to it forms the possessive pronoun "its". The possessive pronoun its is used for displaying ownership while it's refer to an inanimate object or an animal. The best way to recognize the distinction between them, that in which category they fall in, the subject or the predicate. This would help determine the categorization more easily. However, both of them are based on pronoun "it" but have different purposes to solve as 'Its' shows the possession like "My dog never stays in its kennel" while in "It's" the apostrophe signifies an omission and used for the phrase "It is" or "it has" like "It's been long time since we have met".

the audience knows that nora is intentionally failing to dance correctly, but helmer doesnt