Static RP election in multicast

Hi all, 

The election of configuration static RP in multicast depends on longest subnet mask or not? 
For example, which router will be the RP? 
A. R1 for all groups. 
B. R4 for group 224.1.1.12 and R1 for all other groups.

[edit protocols pim]
user@R1# show
rp {
   local {
      address 10.220.1.1;
      priority 1;
      group-ranges {224.1.1.11/32;
         224.0.0.0/4;
      }
   }
}
interface all;
interface fxp0.0 {
   disable;
}



[edit protocols pim]
user@R4# show
rp {
   local {
      address 10.220.1.4;
      priority 5;
      group-ranges {224.1.1.12/32;
         224.0.0.0/4;
      }
   }
}
interface all;
interface fxp0.0 {
   disable;
}

Thank all,