I'm pretty sure that it's C. I'm not quite sure though.
I think gills
but idk so don't fully take my word on it
F(t) =
The formula to use is: a(x-xv)^2+yv
where a is the coeficient of x^2, xv= -b/2a (b is the coeficient of x) and yv= -delta/4a or f(xv)
xv = 8/8 =1
yv = f(xv)=f(1) = 2
f(t) = 4(t-1)^2+2 the minimum value is 2 when t=1
The answer to your question is C. I hope this is the answer that you are looking for and it comes to your help.
Cell membrane hope this helps
Natural selection helps the anteater get food easier than others.