Which of these is a reason to carry routes that originate outside your network in an EGP, such as BGP, rather than in your IGP, such as OSPF, EIGRP, or IS-IS? 

Answer options:

A. to provide better control over the distribution of the default route inside your network
B. to prevent failures outside your network from impacting your internal network operation
C. to provide faster convergence to destinations outside your network
D. to provide a growth path for the core of your network

B