Answer:
B
Step-by-step explanation:
Taking an algebraic approach
If f(x) = f(- x) then f(x) is Even
If(- x) = - f(x) then f(x) is Odd
f(- x) = [tex](-x)^{6}[/tex] + 12[tex](-x)^{4}[/tex] - 14[tex](-x)^{2}[/tex] + 13
= [tex]x^{6}[/tex] + 12[tex]x^{4}[/tex] - 14[tex]x^{2}[/tex] + 13
Since f(x) = f(- x) then f(x) is Even → B
