Put very simply, as one muscle contracts, the corresponding muscle relaxes.
Answer:
disagree, but it's your choice.
Explanation:
"Obamacare" helped many people, and was very affordable.
The first three options I see are all making-decision process to take action, but the last one is the one that is not like that. Researching is something that is not so close in meaning to what you need. That is why, D is a good option.
In? I dont know im waiting so my question answered. I tried.