Manno could not find his log book that proved his vehicle expenses for 2024, which would have resulted in him getting a larger refund. Manno later found his log book after filing his 2024 return. The latest date he can file an amended return to obtain a refund is __________.
April 15, 2026.
April 15, 2027.
April 15, 2028.
April 18, 2029.