To determine if the point (3, 7) is a solution to the equation \( y = 4x - 5 \), we can substitute \( x = 3 \) into the equation and see if \( y \) equals 7.
Starting with the equation:
\[ y = 4x - 5 \]
Substituting \( x = 3 \):
\[ y = 4(3) - 5 \] \[ y = 12 - 5 \] \[ y = 7 \]
Since when \( x = 3 \), \( y \) equals 7, the point (3, 7) is indeed a solution to the equation.
Thus, the correct answer is:
C. Yes, the scientist is correct.