The attached dataset represent an individual interaction network among a set of students, teachers, and staff in a regular school day. The data was collected using a set of sensors that everyone in the school wore for a day, and an interaction was recorded when any given two sensors are closer than $1$ meter from each other. Each line in the network.csv file contains the ID of the two individuals and a number representing the duration through which the two individuals were in close proximity. Each line in the people.csv has the node ID and its type $($student$,$ teacher, staff, other$).$Using ICM, please identify the most critical set of individuals which can cause the widest spread of COVID$-19$ in the school if they get infected based on their interaction pattern. Analyze and comment on the type of individuals included in this set. wwttiittee ppyytthhoonnee ccooddee