First, you need to know what a gerund is. It refers to a word form that looks like a verb + ing. So here, the gerund phrase is <em>walking in the deep snow. </em>Also, you need to know that gerund is practically a noun in a sentence, meaning that it can function as either a subject or an object of a sentence. Here, the correct answer is the subject.
If you are unsure, you can replace the phrase with a pronoun He, for example: He made me feel... And you will know it is a subject, because the object would be Him.
Answer:
cause (someone or something) to change course or turn from one direction to another.
Explanation:
In Ancient times, sickness was thought to be caused by an excess of blood. Therefore, doctors would cut into their patients and let some of the blood out to help cure them. This theory advanced into thinking that the human body needed all of its "humors" to be balanced: blood was one of the humors so if the doctor thought you had an imbalance, they would 'let' some of the blood out.