What is the factored form of the expression
16a2b 2−40a 5b 5+40ab+40a 5b?
a) 8ab(2ab−5a4b4+5+5a4)
b) 2ab(4ab−5a 4b4+10+10a4)
c) 4ab(4ab−5a4b4 +5+5a 4 )
d) 8ab(4ab−5a4b4+5+5a4)