6. Which quantity is greater?
$$\begin{array}{lcl}Column\: A:36\\ Column\: B:\:The\:area\:of\:a\:circle\:with\:radius\:4 \\ \\ (A):If\: the\: quantity\: in \: Column\: A\: is \: greater;\\ (B):If\: the \: quantity\: in \: Column \: B\: is \: greater;\\ (C):If\: the \: two\: quantities\: are\: equal;\\ (D):If\: the\: relationship\: cannot\: be\: determined\\\, \, \, \, \, \, \, \, \, \, \, \: from\: the\: information\: given.\\ \end{array}$$