The answer would be D. All of the above because A, B and C are also true.
Explanation:
A) Carbon Dioxide is your answer,100%
<span>In the human body, the larynx is attached to the trachea. This is TRUE. </span>
Folate would drive skin adopting a darker skin tone.
Darker pigmented skin tone. folate will be destroyed and they will not be successful reproducers.