A question with two VRRP routers and there is an IP reachability

A question with two VRRP routers and there is an IP reachability
A . When R1 lose route to 10.x.x.x then R2 will take mastership because it will be decrement of 20 the priority of R1 is 110 C minus 20 = 90 and the R2 is on default priority (100).
B . When R2 lose route to 10.x.x.x then R1 will take mastership because it will be increment of 20 the priority of R2 is 120.
C . When both R1 and R2 lose route to 10.x.x.x then either R1 or R2 will take mastership because it will be decrement of 10 the priority of R1 is 110.
D . When R2 lose route to 10.x.x.x then R1 will take mastership because it will be increment of 20 the priority of R1 is 130 C minus 20 = 110 and the R1 is on default priority (90).

Answer: A