Help Android System Recovery

[rottenally]

Hi,
I turned on my phone and had a red triangle with exclamation point. I hit power button and volume up/down and now I have a screen with several options:
reboot system now
apply sdcard:update.zip
wipe data/factory reset
wipe cache partition

And an error msg:
E:can't open/cache recovery/command

Which option would I choose so I don't lose any data? Why did this error occur?

Any help is appreciated

 

[sdrawkcab25]

you would choose reboot

 

[rottenally]

I did and it worked--thank you