Ekman thinks that some basic emotions are the same everywhere.（）

A．To reject the view that adopted children need two languages.
B．To argue that culture affects the way children learn a language.
C．To give reasons why adopted children were used in the study.
D．To justify a particular approach to language learning.

A. Main reason for the popularity of organic food
B. Description of organic farming
C. Factors that affect food health value
D. Testing the taste of organic food
E. Necessity to remove hidden dangers from food
F. Research into whether organic food is better