Why is an embryo sac diploid in agamospermy?

Explanation

### Step-by-Step Solution:

1. **Understanding Agamospermy**: Agamospermy is a form of asexual reproduction in flowering plants where seeds are produced without fertilization. This means that the seeds can develop from the ovule without the fusion of male and female gametes.

2. **Formation of Embryo Sac**: In agamospermy, the embryo sac can develop from one or more sporophytic cells. These cells are diploid, meaning they contain two sets of chromosomes.

3. **Embryogeny Process**: The sporophytic cells undergo a process called embryogeny, which is the development of the embryo. Since these cells are diploid and do not undergo meiosis (the process that reduces the chromosome number), the resulting embryo sac remains diploid.

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