You and another driver reach a busy intersection at the same time. What's the safest course of action?

safest course of action is Yield the right of way to the other driver

Explanation:

when we driving vehicle and reach at busy intersection of road

intersection is same grade or different grade junction, where two or more road meet

at intersection yield sign indicate you that merging driver must prepare to stop if necessary then let driver on another approach proceed

and if anyone enter at intersection of road and he is ahead of your vehicle and if you should have been first to go ahead

and you expect yield to other vehicle but you do not then you may be charge any resulting crash

so safest course of action is Yield the right of way to the other driver