When the T-Ratio Statistics on Individual Coefficients Are All near 0

Multiple Choice

When the t-ratio statistics on individual coefficients are all near 0 but the F-test statistic is greater than 20:

A) multicollinearity is suggested.
B) nonconstant variance of the error terms is suggested.
C) serial correlation is suggested.
D) the root-mean-squared error will be large.
E) the Durbin-Watson statistic will be near 0.