Determine the type of inhibition that has occurred in a first order Michaelis-Menten enzyme catalyzed reaction that has yielded the following data. Vi is the velocity in the presence of inhibitor, V is the velocity when run without inhibitor and [S] refers to the substrate concentration.

[S] V Vi
4.00 0.28 0.28
1.33 0.27 0.25
0.56 0.24 0.20
0.20 0.18 0.13
0.10 0.13 0.08

a) competitive
b) non-competitive
c) uncompetitive
d) no inhibition at all
e) none of the above