[tex]\huge\underline{\sf{{Answer:}}}[/tex]
[tex]\huge\underline{\tt{D. \: Letter \: D}}[/tex]
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During pollination, pollen sticks to the stigma (A) and then germinates and grows down the style (C) in order to reach the ovule (D) to achieve fertilization.
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[tex] \orange{\begin{gathered} \red{\tt{Dävë}} \\ \huge \boxed{ \ddot \smile} \end{gathered}} [/tex]
