Which of the following functions is an even function?\n(A) $y = x ^ { 2 } \sin x$\n(B) $y = x ^ { 2 } \cos x$\n(C) $y = | \ln x |$\n(D) $y = 2 ^ { x }$
Which of the following functions is an even function?\n(A) $y = x ^ { 2 } \sin x$\n(B) $y = x ^ { 2 } \cos x$\n(C) $y = | \ln x |$\n(D) $y = 2 ^ { x }$