Read the following passage and answer the question. 'Mrs Okonkwo ran her classroom with an iron hand. Every student knew that lateness would not be tolerated, that assignments must be submitted on the day they were due, and that whispering during lessons was tantamount to a criminal offence. Some parents complained that she was too strict, but her students consistently produced the best results in the school. At the end of each year, it was Mrs Okonkwo's former students who won the prizes, earned the scholarships, and went on to distinguished careers.' From the passage, it can be inferred that Mrs Okonkwo's strictness
Amade her unpopular with both parents and students
Bhad a negative effect on the creativity of her students
Cultimately contributed to the academic success of her studentsCORRECT
Dwas the main reason parents chose to enrol their children in her class