Match the missing or misplaced possessive apostrophe reference to

Question

the correct solution: Confusion between its and it's
Solution:
a. Do not use an apostrophe to form the possessive of it; use an
apostrophe to form the contraction of it is.
b. Use an apostrophe and an -s to form the possessive of a
singular noun, even one that ends in -s.
c. Use an apostrophe and an -s to form the possessive of a
singular indefinite pronoun, or do not use an apostrophe with
any of the possessive personal pronouns.
d. Use an apostrophe alone to form the possessive of a plural noun
that ends in -s.
e. Use an apostrophe and an -s to form the possessive of a plural
noun that does not end in -s.

Answer 1

a. Do not use an apostrophe to form the possessive of it; use an apostrophe to form the contraction of it is.