What happens when a switch running IEEE 802.1D receives a topology change message from the root bridge?

What happens when a switch running IEEE 802.1D receives a topology change message from the root bridge?

• The switch uses the forward delay timer to age out entries in the MAC address table.
• The switch uses the hello to age out entries in the MAC address table.
• The switch uses the forward delay and the max-age timer to age out entries in the MAC address table.
• The switch uses the max-age timer to age out entries in the MAC address table.

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