The simple return formula is:

$R_t = \frac{P_t - P_{t-1}}{P_{t-1}}$

Given that the simple return for the 5th period is 1.75% (0.0175), and the price at time 4 is 99, we can set up the equation:

$`$0.01`75 = \frac{P - 99}{99}$$

Solving for P:

$P - 99 = 0.0175 \times 99$ $P - 99 = 1.7325$ $P = 1.7325 + 99 = 100.7325$

Therefore, the value of P is approximately 100.73, which corresponds to option C.