Susana Says "My Backpack Was Forgotted", Which Is an Example

Multiple Choice

Susana says "my backpack was forgotted", which is an example of what problem of learning grammar?

A) She overregularized the word "forget" by applying a rule to every language situation.
B) She has a disability related to pragmatics.
C) She misuses monolingual educational strategies.
D) She shows evidence of being semi-lingual in her second language.