D. South Carolina was the first to declare itself "a separate and independent State." They had not liked the things the Lincoln had campaigned for during his run to become President.
Just estimating, I would say D
Answer:
A. Beta coefficient.
Explanation:
This is widely used in regression analysis and in most times in capital asset pricing models (CAPM). The beta coefficient is a measure of an asset's risk and return in relation to a broad market, meaning that it will show, more or less, how the asset or a portfolio of assets will respond as the market moves up or down. It is used in the capital asset pricing model and regression analysis.
It also can be the measurement of how much the value of a particular share has changed in a particular period of time, compared to the average change in the value of shares in the stocks.