Select the correct answer. Which activity will help build muscular endurance?
O A. Tumbling

OB. Jump rope

O C.
Riding your bike

OD
All of the above

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.