What method / feature / functions you need to enable to prevent initial / potential broadcast of internal information/topology?

Your company wants to connect an internal switch to the uplink provider switch.

What method / feature / functions you need to enable to prevent initial / potential broadcast of internal information/topology? (forgot the correct wording)
A . BPDU Filter
B . BPDU Guard
C . BPDU Loop
D . BPDU bridge

Answer: A

Explanation:

Ans: A