The use of relatively weak mortar_______________?

Consider the following statements.
1. will accommodate movements due to loads and, cracking if any, and will be distributed as thin hair cracks which are less noticeable or harmful.
2. will result in reduction of stresses due to differential expansion of masonry units.
select the correct statements.
A. 1 alone is correct
B. 2 alone is correct
C. both 1 and 2 are correct
D. neither 1 nor 2 is correct