If the host plant is susceptible to the pathogen at young age and becomes resistant with age then it possesses

Solution (By Examveda Team)

If the host plant is susceptible to the pathogen at a young age and becomes resistant with age then it possesses Adult plant resistance.
Resistance is the ability of a plant variety to restrict the growth and development of a specified pest or pathogen and/or the damage they cause when compared to susceptible plant varieties under similar environmental conditions and pest or pathogen pressure.