For each of the following questions, arrange the sentences A, B, C, and D between sentences 1 and 6 to form a logical sequence with sentence 1 and sentence 6 as the starting sentence and the concluding sentence respectively.
(1) Thirty-four wholly owned subsidiaries, twelve joint-venture companies and ten associate companies make up the PETRO Group.
A- The petroleum industry is a significant contributor to the country’s growth and industrialization.
B- Together and governed by a common vision, they are engaged in activities ranging from marketing of crudes and petroleum products, processing and distribution of gas and manufacture of fertilizers and petrochemicals.
C- PETRO’s efforts are being directed at adding value to the petroleum resources of the country.
D- It is a significant export earner and contributor to government revenue.
(6) In the process, it ensures the country acquires the necessary skills and know-how in the petroleum industry through active participation and transfer of technology.