Given the task definition and input, reply with output. In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Sentence: In atherosclerosis, thickening of an arterial wall due to plaque formation can restrict blood flow through the artery. Question: In atherosclerosis, thickening of an arterial wall due to this can restrict blood flow through the artery?
plaque formation