In the following sentence, what does the underlined phrase m

Please wait...
THANKU FOR BEING A PART OF OUR JOURNEY TO BRING "REVOLUTION IN EDUCATION"
We Genuinely APPRECIATE your PATIENCE

SKINS
ADS

Red
Pink
Purple
Deep Purple
Indigo
Blue
Light Blue
Cyan
Teal
Green
Light Green
Lime
Yellow
Amber
Orange
Deep Orange
Brown
Grey
Blue Grey
Black
White

Coming Soon

68

M: +1.00/-0.00

In the following sentence, what does the underlined phrase mean ? A good teacher is one who sees to it that a student does not waste time in reinventing the wheel?

[MBA CMAT 2019]

A waste time on unnecessary details

B repeating oneself

C waste time in imaginary things

D doing something that has already been done