Solve logical problems

According to the third article and the hypothesis, it is concluded that only one school recruits secretaries and only another school recruits physics.

According to Article 2, Jardine Matheson cannot recruit these two majors. Because if Jardine Matheson recruits and Fengyun recruits, it will become two companies.

So the remaining two schools, Fengyun and Hongyu, recruit secretaries and physics respectively.

According to Article 5, because Jardine Matheson didn't hire a secretary, Hongyu must have hired a secretary, but Jardine Matheson didn't.

So the wind and cloud recruit physics. Option d