Answer :
Standard Deviation is a measure of risk.What is Standard Deviation?Standard deviation is a measurement of the dispersion or distribution of a data set in statistics.
Essentially, standard deviation quantifies how far from the mean of the data set a given data point is on average. The standard deviation can be a useful tool for investors seeking to mitigate risks in their investment portfolios by identifying and analyzing the level of volatility associated with different securities or investment options.Therefore, option A is the correct answer.
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