What is a safe practice before making a lane change?

Answer: A — Checking mirrors and blind spots

Checking mirrors and blind spots is essential for safe lane changes. This practice allows a rider to be fully aware of their surroundings, including the positions of other vehicles that may not be visible in the mirrors alone. Blind spots are areas around the motorcycle that cannot be seen in the rearview mirrors, and failing to check these can lead to collisions with vehicles that are beside or behind the motorcycle. By carefully checking mirrors and blind spots in addition to using turn signals, riders ensure that they are making informed decisions and can safely maneuver into another lane without endangering themselves or others on the road.