When an analyst plans to use the ex post beta coefficient to estimate the intrinsic value of a stock using the dividend discount model, it is important that keep in mind the

the slope of the characteristic line of the stock be as close to 1 as possible.

the R square be as close to 0 as possible.

that major changes have recently occurred to the company that issued the stock.

the R square be as close to 1 as possible.

the vertical intercept of the characteristic line be as close to 0 as possible.