Which configuration causes RIP-learned routes to be advertised to other RIP neighbors?

'set protocol rip no-passive' is not a valid Junos OS command in this format; the 'no-passive' option is applied to specific interfaces within a RIP group, not globally to the protocol itself.

'top edit policy-options policy-statement demo' is the initial step to create a routing policy. While this command itself doesn't directly cause advertisement, an export policy defined under 'policy-options policy-statement' is the mechanism used to specify which routes, including RIP-learned routes, should be advertised out of RIP.

'set protocols rip advertise in-out' is not a valid Junos OS command for controlling RIP route advertisement.

This choice is identical to B and provides no additional unique configuration step.