A . Plumbing is the correct answer. Biology is a science, English is a language, Physical education is a more or less a co-curriculum subject. Plumbing is an artisan, its more involving and needs training to perfect in such an art.
All except the fourth (one therapy for all ages).
Answer:
B. a non-competitive method of training to improve muscular strength and endurance
Explanation:
I would say B. a strong personal commitment, because if you really don't want to quit, then you're not going to try at all. If it is set in stone in your head that you will quit, then you're more likely to resist the temptations that will come your way. I know this because a family member smoked for almost her whole life, and because she really wanted to quit, and knew she had to, she did it.
