Consider the following two binary relations on the set $A=\{a,b,c\}$:

$R_1=\left\{\right(c,a),(b,b),(a,c),(c,c),(b,c),(a,a\left)\right\}\text{ and }$$R_2=\left\{\right(a,b),(b,a),(c,c),(c,a),(a,a),(b,b),(a,c\left)\right\}$Then