M25-CHEM-HL-TZ2-P1A-Q26

Which species is an intermediate in the following reaction mechanism?
Step 1: \( (CH_3)_3CBr \rightarrow (CH_3)_3C^+ + Br^- \)
Step 2: \( (CH_3)_3C^+ + H_2O \rightarrow H^+ + (CH_3)_3COH \)