Solve the Problem $f ( x ) = 33.8 + 1.5 \log ( x + 1 )$

Solve the problem.
-Suppose $f ( x ) = 33.8 + 1.5 \log ( x + 1 )$ models salinity of ocean water to depths of 1000 meters at a certain latitude. $x$ is the depth in meters and $f ( x )$ is in grams of salt per kilogram of seawater. Approximate the salinity (to the nearest hundredth) when the depth is 897 meters.

A) $- 29.37 \mathrm {~g} / \mathrm { kg }$
B) $98.32 \mathrm {~g} / \mathrm { kg }$
C) $38.23 \mathrm {~g} / \mathrm { kg }$
D) $101.32 \mathrm {~g} / \mathrm { kg }$