A student noticed many more clover plants in a shaded area on the north side of a building than in a sunny area on the south side of the building. The student stated, "Clover plants must prefer shade." Is this conclusion scientifically justified?

A. Yes; it was based on an observation.
B. Yes; many plants were observed.
C. No; the exact number of clover plants in each of the two locations was not recorded.
D. No; factors other than shade may have caused the difference.