LOT OF POINTS PLEASE HELP ASAP NEED. HELP ASAP NO ROCKY PLS RN I WILL GIVE BRAINLIEST Identify one or more choices that best complete the statement or answer the question.

Formulas of pairs of compounds of nitrogen oxides are given below. Which pairs are consistent for a given mass of nitrogen such that the first compound contains twice the mass of oxygen as the second compound?

a. NO4:NO2
b. NO4:N2O
c. NO2:NO
d. NO:N2O

a., b., and d. only

a. and c. only

a., c., and d. only

c. and d. only