None of the above.
House B is nearer to the tower than house A.
House A and B are equidistant from the tower.
House A is nearer to the tower than house B.
LetMNbe the tower of heighth.HousesAandBare at distancesxandyfrom tower respectively.tan30o=hx⟹xtan30o=h⟹x√3=h.. (1)tan60o=hy⟹√3y=h(2)From (1) and (2), we writex√3=√3y⟹x=3yThus, distance ofAfrom tower is3times the distance ofBfrom the tower.Hence, houseBis nearer to tower than houseA.