QUESTION 8

Let

X= {a,b,c,d},

f={(a,b), (b,a), (c,c), (d,d)} C XXX,

and

g={(a,d), (b,a), (c,b), (d,c) } CXXX.

Find

fog.

a. {(a,a), (b,d), (c,b),(d,c)}

b. {(a,d), (b,b), (c, a),(d,c)}

c. {(a,a), (b,b), (c,c), (d,d)}

d. {(a,c), (b,d), (c, a),(d,b)