Analyzing each option to identify correct statements:
(A) Biography of a saint or a religious leader is called Hagiography.
This statement is accurate. 'Hagiography' is defined as the writing about the lives of saints or religious leaders.
(B) Biography of a saint or a religious leader is called Topography.
This statement is inaccurate. 'Topography' pertains to the mapping of an area's features, not to biographies.
(C) Hagiographies inform us about the beliefs of the followers of a particular tradition.
This statement is accurate. Hagiographies frequently offer insights into the religious practices and beliefs of followers through the narratives of revered figures.
(D) Nobody recorded the histories of saints and religious leaders.
This statement is inaccurate. Numerous historical records of saints and religious leaders exist across diverse cultures and religions.
(E) Written sources do not help us in knowing history.
This statement is inaccurate. Written sources are indispensable for understanding historical events, including religious histories.
Consequently, the correct options are: (A) and (C) only.