Refer to the exhibit. R2 has been receiving routes from R4 that originated outside AS300. A network engineer configured an AS-Path ACL to avoid adding these routes to the R2 BGP table, but the routes are still present in the R2 routing table. Which action resolves the issue? (Choose one answer)

• A. Replace as-path access-list 1 with the ip as-path access-list 1 permit _300_ command.
• B. Replace as-path access-list 1 with the ip as-path access-list 1 permit ^300.* command.
• C. Replace as-path access-list 1 with the ip as-path access-list 1 permit ^300_ command.
• D. Replace as-path access-list 1 with the ip as-path access-list 1 permit ^300$ command.

Correct Answer: B

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