Reliability Can Be Conceptually Viewed as a Ratio of ________ $\frac{\sigma_{\text {observed }}^{2}}{\sigma_{t r u e}^{2}}$

Reliability can be conceptually viewed as a ratio of ________.

A) $\frac{\sigma_{\text {observed }}^{2}}{\sigma_{t r u e}^{2}}$
B) $\frac{\sigma_{\text {true }}^{2}}{\sigma_{\text {observed }}^{2}}$
C) $\frac{\sigma_{\text {observed }}^{2} * \sigma_{\text {true }}^{2}}{\sigma_{\text {true }}^{2}}$
D) $\frac{\sigma_{\text {observed }}^{2}+\sigma_{\text {true }}^{2}}{\sigma_{\text {true }}^{2}}$