When Using Spanning Tree Protocol, Which Port on Non-Root Bridges

When using Spanning Tree Protocol, which port on non-root bridges can forward traffic toward the root bridge?

A) Only one root port, which is the bridge's port that is closest to the root bridge, can forward.
B) Only one root port, which is the bridge's port that is furthest from the root bridge, can forward.
C) All ports can forward frames to the root bridge, provided they are not in a down state.
D) All ports will forward frames to the root bridge, unless a BPDU is received back on that same port.

Correct Answer:

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