Answer:
Discuss your observation with Lenny's mother ( A )
Explanation:
Lenny holding book close to his face when reading is a sign that Lenny has a problem with his sight but as his teacher you lack the professional ability to decide the exact problem with his eyes since it is a medical condition so the best and initial responsibility you should undertake as his teacher is ti inform/discuss your observation with Lenny's mother who will make an appointment to have Lenny's eyes tested professionally .
Training Lenny not to hold books so close to his face would have been the best option if he has always held the book close to his face from the day he started school , but from the question it was observed after a few weeks that means he was not holding the book close to his face initially
