In an experiment involving treatments to demonstrate transpiration, six experimental setups were as follows:

I. Woody plant with only leaves coated with Vaseline jelly.

II. Woody plant with only stem coated with Vaseline jelly

III. Woody plant without any coating of Vaseline jelly

IV. Herbaceous plant with only stem coated with Vaseline jelly

V. Herbaceous plant with only leaf coated with Vaseline jelly

VI. Herbaceous plant without any coating of Vaseline jelly

Cobalt chloride (COCl₂) paper (changes from blue to pink when wet) was attached to the leaves and stem.

The plants were cell watered and kept under adequate sunlight. The following were proposed :

Which of the above is/are correct ?

(a) I, II and V 

(b) Only II 

(c) III, IV and VI 

(d) Only V