What is the function of pits in water transporting cells in the xylem? A. They provide strength to the walls of vessel elements and tracheids B. They facilitate the lateral movement of water between...

What is the function of pits in water transporting cells in the xylem? A. They provide strength to the walls of vessel elements and tracheids B. They facilitate the lateral movement of water between water transporting cells C. They facilitate air circulation to help keep these cells aerated and alive D. They are evolutionary leftovers that do not serve a particular function now.