为什么?Tina was twelve years old.She had a fever and went to se

为什么?
Tina was twelve years old.She had a fever and went to see a doctor one day.The doctor gave her some medicine.There are some instructions;
Shake well before use.
Take three daily after meals.
Does:adult 2 teaspoonfuls
children 9-14 1 teaspoonfuls
children 5-8 1/2 teaspoonfuls
Not suitable for children below the age of 5.
Use before October31st,2010.
( ) 1.Tina should take ______ in a day.
A.2 teaspoonfuls B.1 teaspoonfuls
C.3 teaspoonfuls D.1/2 teaspoonfuls