If (A+B) = 4, (B+C) = 8 and (C+D) = 3, what is the value of (A+D)?	Choose one
A) 16 .  B) 8 .  C) 7 .  D) 2 .  E) - 1 .

Rationale: "given a + b = 4 b + c = 8 c + d = 3 then ( a + b ) - ( b + c ) + ( c + d ) = 4 - 8 + 3 = - 1 option e . . ."
Answer: E