Pronoun case (such as <em>I</em> vs. <em>me</em>) 1

Pronoun case (such as I vs. me) 1

Example:

My great-grandmother can walk farther and longer than friends who are much younger than she.

My great-grandmother can walk farther and longer than friends who are much younger than her.

In the first sentence, she is correct: . . . much younger than she [is].