The correct statement is: A greater net force results in a greater acceleration as long as the mass stays constant.
This is based on Newton's Second Law of Motion, which states that the acceleration (a) of an object is directly proportional to the net force (F) acting on it and inversely proportional to its mass (m). This relationship can be expressed with the equation:
\[ F = m \cdot a \]
From this equation, it is clear that if the net force increases while the mass remains constant, the acceleration will also increase.