The correct option is C Root
The adventitious roots found in the epiphytes are known as the epiphytic root. These roots hang freely in the air and absorb the moisture from the air by a special type of tissue called as velamen. Thus, velamen is a spongy, multiple epidermis that covers the roots of some epiphytic or semi-epiphytic plants and absorb moisture from air. Epiphytic plants are sometimes called "air plants" because they do not have roots in the soil.