THE Financial Secretary, Mr Hamish Macleod, gave perhaps the shortest principal answer to an oral question in the Legislative Council's history yesterday. Mr Frederick Fung Kin-kee asked whether the Government knew how many Exchange Fund Advisory Committee members had the right of abode in other countries, and whether there was a plan to introduce a localisation policy for the committee. Rising to his feet, Mr Macleod gave a simple reply: ''The answer to both parts of the question is no.'' Obviously unhappy with the answer, Mr Fung asked: ''Does he mean he doesn't know? Or does he mean he doesn't want to tell me?'' He wanted to know whether the Government was prepared to study the issue if it did not have the information now. Mr Macleod said the Government did not ask who had the right of abode in other countries. ''It is not the sort of information which is published and it's not the normal meaning attached to localisation.'' Mr Macleod agreed with legislator Mr Vincent Cheng Hoi-chuen that a member's knowledge of the financial market was more important than whether he had the right of abode elsewhere.