
    Write a function that identifies the student ID of the most at-risk student from a list of student data pairs, where each pair contains a student ID and their calculated risk score. The function should return the student ID associated with the lowest risk score, as this indicates the student requiring the most urgent academic intervention.
    

    
from operator import itemgetter

def index_minimum(test_list):
    """
    Write a function that identifies the student ID of the most at-risk student from a list of student data pairs, where each pair contains a student ID and their calculated risk score. The function should return the student ID associated with the lowest risk score, as this indicates the student requiring the most urgent academic intervention.
    

    """
from operator import itemgetter

def index_minimum(test_list):
    """
    Write a function that identifies the student ID of the most at-risk student from a list of student data pairs, where each pair contains a student ID and their calculated risk score. The function should return the student ID associated with the lowest risk score, as this indicates the student requiring the most urgent academic intervention.
    

    """
    res = min(test_list, key=itemgetter(1))[0]
    return res