What is the current ownership structure of the onshore concession in Abu Dhabi?

A. 100% held by Abu Dhabi National Oil Company (ADNOC)
B. 40% held by ADPC, 60% held by ADNOC
C. 20% held by ADPC, 80% held by ADNOC
D. 50% held by ADPC, 50% held by ADNOC
Answer: 