For my research proposal, do I need to use a Descriptive research design or an Experimental research design? Why?

/in /by

For my research proposal, do I need to use a Descriptive research design or an Experimental research design? Why? Please let me know if you need more information.

Research Topic:

Investigate the impact of pre-pregnancy obesity on infant mortality rate.

"Get 15% discount on your first 3 orders with us"
Use the following coupon
FIRST15

Order Now