Sara is 33 years younger than Rolando. The sum of their ages is 105. Select the system of equations if Sara’s age is represented by S and Rolando’s age is represented by R.
Group of answer choices

A. S+R=105
S=R−33


B. S+R=105
S=R+33


C. S+R=105
R−S=33


D. S+R=33
S=R−105