whatdoesjeanniesayaboutthetutorialsonthecourse-凯发娱乐

what does jeannie say about the tutorials on the course

a．a they are an inefficient way of providing guidanc
b．b they are more challenging than she had expecte
c．c they are helping her to develop her study skill

该题目是单项选择题，请记得只要选择1个答案！