Which one among the following statements is not correct

Q. Which one among the following statements is not correct?

(a) Gandhara School of Arts owed its origin to the Indo- Greek rulers but the real patrons of the school were the Kushans, especially Kanishka

(b) Rich carving, elaborate ornamentations and complex symbolism were not the main features of the Gandhara sculpture

(c) The Graeco-Roman architectural impact modified the structure of the Buddhist Stupas

(d) The artists of the Amravati School of Arts mainly used white marble

Ans: (c) The Graeco-Roman architectural impact modified the structure of the Buddhist Stupas