Suppose You Drop a Clock Toward a Black Hole

Suppose you drop a clock toward a black hole. As you look at the clock from a high orbit, what will you notice?

A) Time on the clock will run slower as it approaches the black hole, and light from the clock will be increasingly redshifted.
B) Time on the clock will run faster as it approaches the black hole, and light from the clock will be increasingly blueshifted.
C) The clock will fall faster and faster, reaching the speed of light as it crosses the event horizon.
D) The clock will fall toward the black hole at a steady rate, so that you'll see it plunge through the event horizon within just a few minutes.

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