In a low-pressure system, the most notable characteristic is that it typically leads to increased cloudiness and precipitation. Therefore, the correct response based on typical effects of a low-pressure system would be that there is precipitation. However, since that option is not among your listed responses, we can deduce that the other options (temperature changes, no precipitation, clear skies, and less wind intensity) may not accurately describe the effects of low-pressure systems.
In short, low-pressure systems are often associated with weather changes, including clouds and precipitation, rather than the options provided. If you need to choose the most relevant response available and considering the context, the closest would be "Temperature changes," as low-pressure systems can indeed cause temperature variations, but precipitation is a more direct effect.