Which of the following is not related to Quaternary sector?

Which one of the following activities is related to the quaternary sector?

 Choose the right answer from the four alternatives given below.

Which one out of the following statements is not true?

(a) Outsourcing reduces costs and increases efficiency.

(b) At times engineering and manufacturing jobs can also be outsourced.

(c) BPOs have better business opportunities as compared to KPOs.

(d) There may be dissatisfaction among job seekers in the countries that outsource the job.