f - he uses computer modelling to study inhibitors to stop viral replication.
f - his work is interesting to scientists who develop new vaccines and work on a new class of medicine.
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f - the passage doesn't state that eric and zarin don't go to school. instead, it mentions that their original research requires hours of work in addition to normal secondary school commitments.
f - the passage contradicts this statement by mentioning that rahman writes in her school magazine, and chen fences and helps in his community. therefore, they do have hobbies and engage in extracurricular activities.