单项选择题

仅去年一年这个工厂的工程师和技术员就开发了不少新产品。______

A.Lonely last year the engineers and technicians in the factory developed quite an amount of new products.
B.Last year alone the engineers and technicians in the factory developed quite a number of new products.
C.Last year alone the engineers and technicians in the factory developed quite an amount of new products.
D.Lonely last year the engineers and technicians in the factory developed quite a number of new products.