Which of these things could lead to type 2 diabetes? a) sexual activity b) smoking c) obesity d) taking drug

The answer is C because Type 2 diabetes usually begins with insulin resistance, a condition linked to excess weight in which your body's cells do not use insulin properly. As a result, your body needs more insulin to help glucose enter cells. The reason why your body needs more insulin is because it was reduced of it from obesity.

//(b) both involve the use of levers;