Refer to the exhibit.

What is the effect of the given command?

A.
It merges authentication and encryption methods to protect traffic that matches an ACL.

B.
It configures the network to use a different transform set between peers.

C.
It configures encryption for MD5 HMAC.

D.
It configures authentication as AES 256.

Explanation:
BD
A transform set is an acceptable combination of security protocols, algorithms and other settings to apply to IP
Security protected traffic. During the IPSec security association negotiation, the peers agree to use a particular
transform set when protecting a particular data flow.
Source: http://www.cisco.com/c/en/us/td/docs/ios/12_2/security/command/reference/srfipsec.html#wp1017694
To define a transform set — an acceptable combination of security protocols and algorithms — use the crypto
ipsec transform-set global configuration command.
ESP Encryption Transform
+ esp-aes 256: ESP with the 256-bit AES encryption algorithm.
ESP Authentication Transform
+ esp-md5-hmac: ESP with the MD5 (HMAC variant) authentication algorithm. (No longer recommended)
Source: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/security/a1/sec-a1-cr-book/sec-crc3.html#wp2590984165