1. (7 points) Which (if any) is the contra positive of the conditional proposition given below. "Bubble" your answer. "Photosynthesis occurs only if there is sunshine." “There is sunshine only

if photosynthesis occurs." “There is sunshine if photosynthesis occurs." “There is no sunshine if photosynthesis does not occur." "There is no sunshine only if photosynthesis does not occur." "Photosynthesis occurs and there is no sunshine." None of the above