Via transport proteins and plasmodesmata, sucrose enters companion cells and phloem sieve tube elements by active transport and diffusion. Which row identifies the way sucrose is loaded?
- Aactive transport: into companion cell; diffusion: into phloem sieve tube element; transport proteins: into companion cell; plasmodesmata: into phloem sieve tube element
- Bactive transport: into companion cell; diffusion: into phloem sieve tube element; transport proteins: into phloem sieve tube element; plasmodesmata: into companion cell
- Cactive transport: into phloem sieve tube element; diffusion: into companion cell; transport proteins: into companion cell; plasmodesmata: into phloem sieve tube element
- Dactive transport: into phloem sieve tube element; diffusion: into companion cell; transport proteins: into phloem sieve tube element; plasmodesmata: into companion cell