Explanation:
First and foremost, one of the most important reasons to learn a foreign language is the stimulation it offers your mind. Like a young child grappling with language for the very first time, you find yourself lusting for knowledge and oozing curiosity at every turn.
Answer:
Adrenaline works directly on receptor cells in muscles to speed up the contraction rate of the fibres, ready for fighting or fleeing. High levels of adrenaline can therefore lead to muscles twitching uncontrollably, making us shake.
Explanation:
"A" as it's not paying much attention to the infant
