Select the combination of correct statements from the options given below.(i) Annual rings are formed as a result of seasonal environmental conditions.(ii) Tracheid's/vessels elements are larger during periods when water is abundant.(iii) Tracheid's/vessels elements have thicker wall during periods of water deprivation.(iv) Wood formed in the previous years is darker than newer wood.

• A. (i) and (ii)
• B. (ii) and (iv)
• C. (i), (ii) and (iii)
• D. (ii), (iii) and (iv)