I'll give you a question, please answer with step-by-step reasoning process.
Sarah did all of it. She was the best saleswoman in the city. But she was never acknowledge for her what?\nOptions:\n- work hard\n- sell products\n- field question\n- slow down\n- productivity

work hard
People who work hard become best in their line of work.

Saleswoman is a line of work.

.

So, the answer is work hard