__________ codes rely on quantitative measures to determine the fire safety level of building construction assemblies and of the building as a whole

What effect does the sympathetic nervous system have on the heart?

A) It increases the speed and strength of contractions. B) It makes the heart more likely to fail. C) It makes the heart less responsive to medication. D) It slows the speed and decreases the strength of contractions.

Rfds _______________________

Fill in the blank(s) with correct word