In which part of modern India was the famous Battle of Plassey fought in $1757$?

Which of the following statements about the Non-Cooperation Movement is/are correct?

$1.$ It was marked by significant participation of peasants from Karnataka.

$2.$ It was marked by non-Brahmin lower caste participation in Madras and Maharashtra.

$3.$ It was marked by the lack of labour unrest in places like Assam, Bengal and Madras.

$4.$ It was badly shaken by the Chauri Chaura incident in $1922$ after which Gandhiji decided to continue with the movement on a much smaller scale.

Select the correct answer using the code given below.

Which of the following was/were founded by Raja Ram Mohan Roy?

A. Atmiya Sabha
B. Brahmo Samaj
C. Prarthana Samaj
D. Arya Samaj