Which of the following active step(s) was/were taken by the Congress in 1823 to eradicate untouchability from India?

1) Effort to educate and mobilize opinion among caste Hindus

2) Efforts to educate the ‘avarnas’ about the evils of untouchability

3) Forcibly open the doors of temples for ‘avarnas’

4) Petition the Government to pass laws that would declare untouchability unlawful

Select the correct answer using the code given below: