The heat content of the products is more than that of the reactant in an ............. reaction
Don't blame yourself.  This is a badly-worded question. Products and reactants don't have "heat content", they have thermal energy. I.e.,  heat is not a property of substances—they don't 'contain heat.'  Instead, heat is a property of processes; specifically, it is the flow of thermal energy across a boundary. So, for instance, in an exothermic reaction in a system with diathermal walls (walls that allow free flow of heat across them), thermal energy flows out of the system, and thus the heat (q) for that reaction is negative. 

Having said that, it seems what they mean by "heat content" is the thermal energy of the system after a reaction if the system is adiabatic (no heat flow in or out, i.e., perfectly insulating walls).  Thus, if you have an exothermic reaction in an insulated container, the products you get will be hotter than the reactants you started with.   

A much better way of asking the question would be:  Suppose a reaction takes place at constant pressure in an adiabatic (insulated) container, and the temperature increases.  Is the reaction exothermic or endothermic?  Answer: exothermic.