The area of the region A=[(x, y)] : 0 y x +1 and −1 in sq unit, is
a. 

b. 

c. 
2 
d. 

The area of the region A=[(x, y)] : 0 y x +1 and −1 in sq unit, is
a. 

b. 

c. 
2 
d. 
