The reason that there is great significance placed on the study of research design is that $\_\_\_\_\_\_\_\_.$

Question $2$ options:

A$)$

research designs are used after studies are completed and used to make improvements in future research studies

B$)$

research designs are like blueprints and helpful during data analysis

C$)$

research designs may be "matched" to different kinds of problems

D$)$

by matching the research objective with the appropriate research design, a host of research decisions may be pre$-$determined