Study the following information carefully and answer the questions given belowTwenty persons work at different designations- Chairperson, President, C...

Study the following information carefully and answer the questions given belowTwenty persons work at different designations- Chairperson, President, CEO, ED, MD, COO, CFO, Vice president, GM, Director, Branch manager and Clerk. The designations are given in descending order such that chairperson is the senior most designation and clerk is the junior most designation. At least three but not more than four persons designated at same designation. Some designations are vacant. J is two designations senior to L who is neither designated as Vice president nor designated as clerk. The number of designations junior to L is one less than the number of designations senior to B. C and G designated at the same designations. No one is designated between G and B who is not junior to C. M is designated at same designation with B but not with L. The just senior and just junior designations of G is vacant. Even number of persons are designated with B. No one is designated as junior to Q who is designated at same designation with L. No one designated between L and J. Only one designation is between O and Q. J is not junior to K. As many persons designated with M is same as Q. A, E and I are designated at the same designation. Odd number of persons are designated with N. A is senior to B but not just senior. N is four designations junior to A. D and F are designated at same designation but neither as Vice president nor as CEO. No one is designated as just junior and just senior to A. R and T are designated at same designation. S is junior to T. H is senior to P. Q and K have different designation. Same number of persons designated with D and G. T is not designated as vice president.

Question: At which designation is A placed?