If feet:
34' 4" - 8' = 26' 4"
if inches: = 33' 8"
Answer:

Option D
Step-by-step explanation:
Given that a producer ships boxes of produce to individual customers.(say x)
X is a normal random variable with mean = 36 and std dev =4 lbs
By definition of std normal variate we know that
is N(0,1)
75th percentile of std normal distribution is
0.675
Hence corresponding x would be

Option D matches with this value
Hence answer is option D

4 is the only factor common among all terms