This Map Shows Contours of the Water Table,the Location of Four

Multiple Choice

This map shows contours of the water table,the location of four factories (labeled A,B,C,and D) ,and contaminated and uncontaminated wells.Which way will the contamination flow?

A) north and northeast,up the contours
B) south and southwest,down the contours
C) northwest and southeast,parallel to the contours
D) impossible to tell because the movement of contamination is independent of groundwater