The volumes occupied by 7.5 moles of nitrogen and 7.5 moles of hydrogen (assuming ideal behavior) at standard temperature and pressure will be ?
A. 168 L and 168 L,respectively
B. 7.5 L and 105 L, respectively
C. 7.5 L and 1.07 L, respectively
D. 7.5 L and 7.5 L, respectively​