Find the area of the region bounded by the curve $y^2 = x$ and the lines $x = 1, x = 4$ and the $x- axis.$

Question

$(A)\; \frac{14}{3} sq.units.$
$(B)\; \frac{7}{3} sq.units.$
$(C)\; \frac{28}{3} sq.units.$
$(D)\; \frac{11}{3} sq.units.$