Fishermen who go out to sea to fish pay special attention to (a) drinking water, diet, funds and weather forecast.

Weather forecast is the weather conditions that meteorologists will appear through the analysis of weather data, mainly including temperature (maximum and minimum), cloudy or sunny days, the possibility of precipitation, the intensity of precipitation, wind power, air visibility and so on. Fishermen pay special attention to the weather forecast when they go fishing at sea.

Therefore, choose: d.