For a Two-Tailed Test with α = 0 $t_{\mathrm{crit}}$ Value Is
A)either +1

Multiple Choice

For a two-tailed test with α = 0.05, the $t_{\mathrm{crit}}$ value is

A) either +1.96 or -1.96.
B) both +1.96 and -1.96.
C) either +1.645 or -1.645.
D) different for each df.