Hello there,
Your correct answer would be "remain still".
The reason why I say this is because when muscles are contracted, this mean's that they are not constantly exercising. This would be that they would stay the same.
Hope this helps.
~Jurgen
The Age of Enlightenment was a philosophical movement that dominated the world of ideas in Europe in the 18th century. ... The radical Enlightenment advocated democracy, individual liberty, freedom of expression, and eradication of religious authority.
Working out.
Your body cools itself by sweating.
Even if it doesn't fell like it.
Hope this helps!!!!