The correct options are
A Marxist historians shed light on the means of production, modes of production and the industrial relations.
C Marxist historians analyse the impact of a significant social event.
Marxism is a set of ideas developed by Karl Marx in the mid-nineteenth century. It originally consisted of three related ideas: philosophical anthropology, a theory of history, an economic and political program. According to Marxism, history was not the conflict of ideas but the conflict of social classes. Therefore, the writings of the Marxist historians revolved around means of production, modes of production and the industrial relations. They analysed the impact of a significant social event.