I studied in Cambridge for three years, but I've never regretted________the decision to move back to

Beijing and________my own restaurant. [ ]

A. to make; to open up  

B. making; opening up

C. to make; open up  

D. making; open up

植物细胞的生长通常是指幼龄细胞（）；分化是指细胞在成熟过程中改变了原来的（）和（），而成为特定类型的细胞。