How are participles and gerunds similar and different?

A. Gerund and participles are similar in that they both can end in-ed; however, they differ in their functions: gerunds function as nouns, and participles function as modifiers.
B.Gerunds and participles are similar in that they both can end in -ing; however, they differ in their functions: gerunds function as nouns, and participles function as modifiers.
C. Gerunds and participles are similar in that they both can end in -ing; however, they differ in their functions: gerunds function as modifiers, and participles function as nouns.
D. Gerunds and participles are similar in that they both can end in -ed; however, they differ in their functions: gerunds function as modifiers, and participles function as nouns.

Please select the best answer from the choices provided