Since the set-up of such a system would be costly and would involve implementing changes in some of our established routines, it would be worthwhile to obtain an objective and knowledgeable analysis of our current and future needs and a system that will best serve them. Brian Lyndens and his firm Acton Business Consultants is the names I hear most frequently when I ask business acquaintances for recommendations. In particular, Jonas Pine Ltd. and Silkwood Products speak highly of Mr. Lyndens' work. Which version of the statement is grammatically correct for the sentence?
is the name I hear most frequently
are the names I hear most frequently
are frequent names I mostly hear
I hear these names most frequently