Which of the following is NOT one of the main sources of new wor

Which of the following is NOT one of the main sources of new words in the present-­day English vocabulary? （）
A、The rapid development of modern science and technology.
B、Social, economic and political changes.
C、The invasion of foreign countries.
D、The influence of other cultures and languages.
【正确答案】：C
【题目解析】：外国的入侵对现代语言产生了一定影响，而不是对当代语言。