In __________ both the burst and tear strengths are crucial, although increment in refining to raise the burst strength leads to less tear strength.

In __________ both the burst and tear strengths are crucial, although

1.	In __________ both the burst and tear strengths are crucial, although increment in refining to raise the burst strength leads to less tear strength.
A.	a)Brown paper bag
B.	b)Polythene
C.	c)Black paper bag
D.	d)Carton bag
Answer» B.