Which of the following are examples of fixed-proportions production functions? Choose one or more: A. (1,2)=123.75 B. (1,2)=min[1,2] C. (1,2)=min[1.251,2] D. (1,2)=min[1,3.752] E. (1,2)=11.252 F. (1,2)=1+3.752 G. (1,2)=1+2 H. (1,2)=12 I. (1,2)=1.251+3.752 J. (1,2)=min[1.251,3.752] K. (1,2)=11.2523.75 L. (1,2)=1.251+2