Momentum is calculated using the formula:
\[ \text{Momentum} (p) = \text{mass} (m) \times \text{velocity} (v) \]
Among the options you've provided, the scenario with "an object with a large mass is moving quickly" would have the greatest momentum. This is because the product of mass and velocity is maximized in this situation due to the large mass combined with a high velocity.
So, the correct response is:
An object with a large mass is moving quickly.