3. Sam has 39 pencils and 26 pens to distribute to his classmates. Each student must receive the same number of pens and pencils and there will be no pens or pencils left. What is the greatest number of students in that class? How can we solve the problem?
A. Find the GCF of 39 and 26 ​ ​ ​ C. Multiply 39 and 26
B. Find the LCM of 39 and 26 ​ ​ ​ D. Add 39 and 26