
    Write a function that analyzes a list of investment options and their associated risk levels to identify the safest investment choice for risk-averse clients. Given a collection of investment pairs where each pair contains an investment option and its corresponding risk assessment score, return the investment option that has the lowest risk score.
    

    
from operator import itemgetter

def index_minimum(test_list):
    """
    Write a function that analyzes a list of investment options and their associated risk levels to identify the safest investment choice for risk-averse clients. Given a collection of investment pairs where each pair contains an investment option and its corresponding risk assessment score, return the investment option that has the lowest risk score.
    

    """
from operator import itemgetter

def index_minimum(test_list):
    """
    Write a function that analyzes a list of investment options and their associated risk levels to identify the safest investment choice for risk-averse clients. Given a collection of investment pairs where each pair contains an investment option and its corresponding risk assessment score, return the investment option that has the lowest risk score.
    

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