For any non-zero a and b that satisfy |ab| = -ab and |a| = a, |b-3| + |ab-b| =  Choose the correct choice from the following choices:
A) ab-4	B) |ab|+4	C) 2a-4b	D) b-3ab	E) ab+2ab+1
given |ab|=-ab a*b is negative , |a|=a, so a is positive hence b is negative since ab is negative.   assume a=1,b=-1 |b-3|= 4, |ab-b|=2; |b-3|+|ab-b|=6.   test case :c)   2a-4b= 6   test a) |-1|-4= -3   test b) 1+4=5   hence corect answer: 2a-4b
<result>C</result>
For any non-zero a and b that satisfy |ab| = -ab and |a| = a, |b-3| + |ab-b| =