The timetable for this game-changing ability to turn white fat to brown fat is predicted to be less than five years away after human studies start. If scientists find a way to replace white fat with brown fat, it will likely mitigate risks of diseases like diabetes, heart disease, stroke, and brain disorder greatly and provide increased energy levels. That is, you become operationally younger. Bring it on!

What does the underlined word “mitigate” in the last paragraph mean?

A．Assess.

B．Reduce.

C．Identify.

D．Involve.