A．That taste buds aren’t located only on the tongue.
B．That taste buds aren’t all the same size.
C．That solutions must be measured and mixed carefully.
D．That he shouldn’t swallow the solutions.

A．Because the Japanese like taking photographs.
B．Because the Japanese like writing letters to each other.
C．Because the Japanese postal officials want to print a special stamp to catch worldwide attention.
D．Because the Japanese postal officials hope these stamps will help promote interests in letter writing.