In the sentence “I stopped ____ with my sister”, it is

A It could be both the gerund or the infinitive, but the sentence would have different meanings with each B It could be both the gerund or the infinitive, and the sentence would have the same meaning with either one of them. C It should be the gerund, because the verb “stop” must be followed by a gerund D It should be the infinitive, because the verb “stop” in the simple past must be followed by an infinitive form E It should be the past participle, due to the combination of two action verbs