Read the following context and choose the best option to answer the question.
Context: 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: What was I doing in the yard ?
Options: 
A. None of the above choices .
B. I was trimming shrubs .
C. I was repairing the window frames .
D. I was pruning the apple tree .


B