Measles mumps parainfluenza viruses paramyxoviridae

What are the distinguishing features of Paramyxoviruses?

1: Negative-sense RNA genome, enveloped, helical capsid
2: Positive-sense RNA genome, naked, icosahedral capsid
3: Negative-sense RNA genome, naked, icosahedral capsid
4: Positive-sense RNA genome, enveloped, helical capsid