The correct option is
B Mesophytes
Guttation is the process in which plant pores secrete droplets of water.
Guttation occurs in moist conditions.
This commonly occurs in mesophytes at night when transpiration
Is not taking place due to closed stomata.
The extra water content is hence removed by this process and it can be seen on the surface of leaves as water oozes out of the hydathodes
So the correct answer is 'Mesophytes'.