Stone tools similar to those found in the Cave at Diuktai were found in in Alaska. A. Fairbanks
B. the Tanana Valley
C. the Yukon Plains
D. the Aleutian Islands

You can drink laxative, or  do this exercise when you are sitting in the bathroom on the toilet. to relieve  constipation  fast or in about 1 minute, pinch your nose after your usual exhalation. start holding your breath. but do not mouth breath during this just hold your breath.