Which would aid a student in preparedness for a lab

reading the lab manual before class

Explanation:

The laboratory is a highly regulated and controlled environment. Within a laboratory many rules must be followed so that no contamination occurs or deterioration of the experiments being performed in the laboratory. All of this can be intimidating for a first-time student entering the lab, so it is recommended that the student prepare before leaving so that no accidents can occur.

The best way for a student to prepare before going to a lab is to read the lab manual before class. This way, the student knows everything they can do and cannot do inside a laboratory and all the guidelines needed for this environment.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

i think that the answer is c