Assuming the italicized clause is <em>Since its establishment, </em>the correct answer here is elliptical clause.
Elliptical means that a word which would normally be part of a sentence is excluded, usually for stylistic reasons. Here, the verb is missing, which is why it is elliptical. The question is oddly formulated too - given that there is no verb here, it cannot be a clause, but rather a phrase, but since there is no such option here, then the correct answer is elliptical clause.
Answer:
Perception Checking has 3 parts: Description - provide a description of the behavior you noticed. Interpretation - provide two possible interpretations of the behavior. Clarification - request clarification from the person about the behavior & your interpretations.
Explanation:
When you live with your parents you have them to depend on, to take care of you and to support you financially. I’m not sure if that was the answer you were looking for but I hope I helped!