Look at the following examples. Which of these are unorganized sector activities?

(i) A teacher taking classes in a school.

(ii) A head load worker carrying a bag of cement on his back in a market.

(iii) A farmer irrigating her field.

(iv) A doctor in a hospital treating a patient.

(v) A daily wage labourer working under a contractor.

(vi) A factory worker going to work in a big factory.

(vii) A handloom weaver working in her house.