Out of curiosity, what do you consider to be "hard-working"?

C. Working efficiently in a long period of time.

B.

@DarkKnightDetective said:

C. Working efficiently in a long period of time.

This is me. I go with C.

That rhymed. I'm like Dr Seuss, only with a shot of lime. WORD.

I will go with D. People who WORK HARD!