<span>The equation given as p varies directly with d and inversely with the square root of u is written as:
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p = k1d
k1 is the proportionality constant.
and p = k2

here k2 is the proportionality constant.
Thus,
combining both equations we get, p = C

where K = K1*K2, K is the proportionality constant.
Answer:
The answer would be C. or D.
Step-by-step explanation: