Express Y as a Function of X $\ln y = \ln 4 x + \ln C$

Multiple Choice

Express y as a function of x. The constant C is a positive number.
- $\ln y = \ln 4 x + \ln C$

A) $y = x + 4 C$
B) $y = ( 4 x ) ^ { C }$
C) $y = 4 x + C$
D) $y = 4 C x$