Answer: C. Easily defeated
Explanation: Invincible itself means one who cannot die from unnatural causes (but can still die from old age, etc.)
Keep in mind, invincible does NOT mean immortal. Immortal means you can never die. Invincible just means you cannot die or be defeated from unnatural causes like people fighting you.
An antonym is an opposite of a word. The opposite of being undefeated is a person who is easily defeated. Thus the antonym for invincible is "C," easily defeated.
Favor / disfavor ...........
Answer:
I believe a tutor should have experience in the subject they are tutoring for.
Explanation:
I believe a tutor should have experience in the subject they are tutoring for because it's important for the tutor to understand the concepts they are trying to teach. It would be harder if a tutor just wings it, and teaches a student about a concept they know nothing of. Furthermore, it's also very hypocritical. The student might think, 'why is someone teaching me about something they don't know?' The tutor isn't going to help the student get any better, and the tutor isn't getting any better by teaching something they don't know anything about. Therefore; it is important and essential for a tutor to have substantial experience in the subject they are tutoring for.