Female gametophytes produce eggs inside the ovaries of flowers, and flower buds appear in the growing tip of the plant. Given these facts, where do female gametophytes produce eggs among the following options:
- peachleaf willow
 - The bottom of plants
 - Earth orbiting the Sun
 - The middle of plants
 - the environment
 - underground
 - The tips of plants
 - plant reproduction


 

       The tips of plants  