Lenticels are involved in:
Photosynthesis
Transpiration
Gaseous exchange
Food transport
As we discussed in concept
Lenticular transpiration results in release of water vapour.
Option 1)
Photosynthesis
This option is incorrect.
Option 2)
Transpiration
This option is incorrect.
Option 3)
Gaseous exchange
This option is correct.
Option 4)
Food transport
This option is incorrect.