For earthquake resistant masonry buildings, where seismic coefficient is less than 0.08, the horizontal distance between two openings shall not be less than_________________?

For earthquake resistant masonry buildings, where seismic coefficient is less than 0.08, the horizontal distance between two openings shall not be less than_________________?

A. Vt x height of shorter opening
B. Vt x height of longer opening
C. Ax height of shorter opening
D. Vi x height of longer opening