Through which sequence of structures does a pollen tube grow in a flower?
- Aovary $\rightarrow$ ovule $\rightarrow$ stigma $\rightarrow$ style
- Bovary $\rightarrow$ stigma $\rightarrow$ ovule $\rightarrow$ style
- Cstigma $\rightarrow$ style $\rightarrow$ ovary $\rightarrow$ ovule
- Dstigma $\rightarrow$ ovary $\rightarrow$ style $\rightarrow$ ovule