But first I had to trim away some of the shrubs growing up around the window frames . I trimmed other brush , too , because I was out in the yard working , anyway . Foul white flies and other winged pests flew up around me as I worked . I found a nest yellow - jackets in a hole by the apple tree , and killed them .

Question: why were the pests there ?
Answer: they loved the windowsthey came out of nowhereNone of the above choices .they were always in the yard