the answer is
to....breath
"required him <em>to</em><em> </em>hold his <em>breath</em><em> </em>for three minutes"
<span>Information from a study that has not gone through any interpretation or processing is said to be an <u>unreliable</u> data.</span>
B would be the correct answer.
Imma say B) Straight Forward
All of them are for revising
