Which one of the following sentences contains an incorrect usage of the singular possessive? a. mary was dominant among jesus' disciples. b. the alpha male is often the pack's leader. c. icarus's fate was sealed when he approached the sun. d. the north forty has always been my family's land.

C. Icarus's fate was sealed when he approached the sun.

= Icarus'
Possessive noun usually includes an apostrophe such as Nene's bear, plant's soil, earth's mass and a lot more. Therefore, the possessive noun in the new coat belonging to Sharon is Sharon's that is Sharon's new coat. Add 's to those singular or plural nouns that do not end in s however, add only an apostrophe to plural nouns that already ends in s. Moreover, possessive nouns can be personal pronouns too. Personal pronouns actually shows or displays ownership of something especially in a sentence plus it does not the 's form of the word. Possessive pronouns inlude we, mine, her, his, ours, theirs and a lot more