Let f(t)=t2+1, and define two functions
G(x)=1+∫0xf(t)dt and H(x)=5+∫0xf(t)dt.
Which of the following best describes the graph of H relative to the graph of G?
a) H is obtained by translating the graph of G upward by 4x units.
b) H is obtained by translating the graph of G to the right by 4 units.
c) H is obtained by translating the graph of G upward by 4 units.
d) H is obtained by translating the graph of G downward by 4 units.