How many of the following pairs are exactly alike? (1) 2026-03-14 | 2026-03-14; (2) 2027-11-05 | 2027-11-05; (3) 2025-08-21 | 2025-08-12; (4) 2026-12-30 | 2026-12-30; (5) 2027-01-09 | 2027-01-09

Correct answer: C. 4

4 of the five pairs are exactly alike: (1) is alike; (2) is alike; (3) differs at "8-21" vs "8-12"; (4) is alike; (5) is alike. Check each pair one character at a time, from left to right, without skipping punctuation.