Everyone who wants to engage in education wants to obtain a Mandarin certificate such as Level A. and Wang Hong also wants to obtain a Mandarin certificate such as Level A. so Wang Hong must want to engage in education. Which of the following, if true, best supports this view? ['At present, more and more people who are engaged in education have obtained Mandarin certificate such as Class A.', 'Not wanting to get a second-class Mandarin certificate, is not a good educator.', 'Only those who want to work in education want to get a second-class Mandarin certificate.', 'Only those who have obtained a Putonghua certificate such as Level 2 are eligible for education.']