Hearnshaw also held the posts of Honorary Secretary of the Royal Historical Society , 1931-1934 and President of the Historical Association , 1936-1938 .
Hearnshaw also had the positions of Honorary Secretary of the Historical Association , 1931-1934 and President of the Royal Historical Society , 1936-1938 .

Are these two sentences paraphrases of each other?
OPT:
(a). no;
(b). yes;
(a).