Which indicator would minimize titration error when titrating 0.100 M HCl with 0.100 M NaOH so that the end point occurs as close as possible to the equivalence point?
a) Phenolphthalein, pH8.2−10.0
b) Phenol red, pH6.8−8.4
c) Bromothymol blue, pH6.0−7.6
d) Methyl orange, pH3.1−4.4