Question

the constant g in newtons equation
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hint 1.
what does any constant in an equation usually accomplish?
was measured by newton
makes the units of measurement consistent
produces equilibrium
shows gravity to be a relatively huge force

Explanation:

In Newton's law of universal gravitation $F = G\frac{m_1m_2}{r^2}$, the gravitational constant $G$ is chosen such that the units on both sides of the equation match. For example, the force $F$ is in Newtons, masses $m_1$ and $m_2$ are in kilograms, and distance $r$ is in meters. The value of $G$ (with its units $\frac{N\cdot m^{2}}{kg^{2}}$) ensures unit - consistency. Newton did not measure $G$ (it was later measured by Cavendish). The constant $G$ is not related to producing equilibrium in the general sense of the word as used here, and gravity is actually a relatively weak force.

Answer:

B. makes the units of measurement consistent