Carcass wrote:
1) extravagant claim refers to the fact the passage conveys fancy and improbable twist to the law of energy and the author of the author says: no. You (someone) are trying to disrupt the law itself but your (someone) assertions do not have strong points
2) B is just part of the passage which explain how heat pumps work. It does not grasp the overall sense or idea of the passage.
Hope this helps
Oh I am sorry. By mentioning B, I was actually pointing C.
It might be confusing, so let me be rectify my second answer again.
Answer choice C is more likely about structure of the passage and E seems concluding passage. I failed to pick C over E, so please clarify difference between answer choice C and E. What made me fall into this?