A Network Administrator Must Configure SSH for Remote Access to Router

A network administrator must configure SSH for remote access to router R1. The requirement is to use a public and private key pair to encrypt management traffic to and from the connecting client. Which configuration, when applied, meets the requirements?

A) R1 #enable R1 #configure terminal R1(config) #ip domain-name cisco.com R1(config) #crypto key generate ec keysize 1024 R1 #enable #configure terminal R1(config) #ip domain-name cisco.com #crypto key generate ec keysize 1024
B) R1(config) #crypto key generate ec keysize 2048 #crypto key generate ec keysize 2048
C) R1(config) #crypto key encrypt rsa name myKey #crypto key encrypt rsa name myKey
D) R1(config) #crypto key generate rsa modulus 1024 #crypto key generate rsa modulus 1024