Which of the following are the features of the Employees State Insurance Act, 2010?

1. Facilitating coverage of smaller factories.

2. Enhancing the age limit of dependent children for eligibility to dependants benefit.

3. Extending medical benefit to dependant minor brother/sister in case of insured persons not having own family and whose parents are also not alive.

4. Streamlining the procedure for assessment of dues from defaulting employers.

Select the right code from the given below.