At last month's meeting mr. iqbal, the chair of a business association for immigrants, described the most significant problems he had experienced in adapting to his new country's business regulations and outlined several actions that he had taken to deal with those problems.

The correct answer is A

Missing options

A - had experienced in adapting to his new country's business regulations and outlined several actions that he had taken to deal

B - experienced, adapted to the business regulations of his new country, and outlined several actions that had been taken in his dealing

C - had experienced in adapting to the business regulations of his new country and in outlining several actions that he had taken in dealing

D - experienced while adapting to his new country's business regulations and outlining several actions taken in his dealing

E - experienced in adapting to his new country's business regulations and outlined several actions with which he had taken in dealing

Explanation:

When reading option A for the first time,  it has no issues.  The past perfect is used to show that one past action happened before another past action.  It is when an event that occurred before another event in the past is mentioned.

answer; the negotiator was not in full control of his or her actions and hence should not be held responsible;