Identify the correct and incorrect statements from the following.
$(i)$ $17,500$ new cells are produced per hour by a single maize root apical meristem.
$(ii)$ With the help of length,growth of pollen tube is measured.
$(iii)$ The growth of the leaf is measured in terms of volume.
$(iv)$ Cells in a watermelon may increase in size by up to $3,50,000$ times.

• A
  $(i), (ii), (iii)$ are correct and $(iv)$ is incorrect.
• B
  $(i), (ii), (iv)$ are correct and $(iii)$ is incorrect.
• C
  $(ii), (iii)$ are correct and $(i), (iv)$ are incorrect.
• D
  $(i), (iv)$ are correct and $(ii), (iii)$ are incorrect.