The t-Statistic for the Individual Significance of the Estimated Slope $\hat { \beta } _ { 1 }$

Multiple Choice

The t-statistic for the individual significance of the estimated slope coefficient $\hat { \beta } _ { 1 }$ Is

A) the standard error of the estimated slope coefficient.
B) the estimated slope coefficient.
C) the ratio of the estimated slope coefficient to the standard error of the estimated slope coefficient.
D) the ratio of the estimated slope coefficient to the variance of the estimated slope coefficient.