Consider the following statements and select the option which correctly identifies true (T) and false (F) ones.

i) Robert Brown discovered nucleus in the cells.

ii) The plasma membrane is made up of a double layer of lipid and protein molecules.

iii) Chloroplast helps in osmoregulation and maintains the osmotic pressure in a cell.

iv) Carbohydrates and fats are completely oxidized with the help of enzymes present in the mitochondria.

(i)                            (ii)                          (iii)                          (iv)