Read the sections 4.1 to 4.3 of the paper. What is the function of 4.3?
A、To confirm the validity of the results stated in 4.1 and 4.2.
B、To address readers’ doubt that the effect of English as stated in 4.1 and 4.2 is driven by pairs in which one country is native English speaking.
C、To support the main hypothesis of the present study.
D、All of the above