7, let cdenote the boundary of the semi-circular disk d{(, y)er: x+s1,y<0} and let a ox, y)= +y for (x, y)ed. if h is the outward unit normal to c, then the int

7, Let Cdenote the boundary of the semi-circular disk D{(, y)eR: x+s1,y<0} and let A ox, y)= +y for (x, y)ED. If h is the outward unit normal to C, then the integral (Vp).idS , evaluated counter-clockwise over C, is equal to (a) 0 (b) T-2 (c)Tt (d) t + 2 JAM MA-2007]