Question

The picture below shows the weather station model at a particular location.

Answer 1

The answer would be: b. wind will blow from south

The diagram shows a hollow circle with a line on its bottom. The line on the bottom shows that the wind direction is from the south.
The hollow circle saying that the sky is clear (there is no cloud) so the scattered cloud is false. 
There is no sign telling about light rain or the snowfall.