Final answer:
To make a left turn at an intersection with multiple lanes, signal at least 100 feet in advance, do not speed up, start in the leftmost or designated left turn lane, and wait until you reach the designated turning point while ensuring that the path is clear.
Step-by-step explanation:
When making a left turn at an intersection with multiple lanes, there are specific rules and procedures that must be followed to ensure the safety of all road users, including pedestrians. The correct answer is not given directly in the options A to D, however, it's vital to signal well in advance of the turn to alert other drivers and pedestrians of your intentions. This typically means signaling at least 100 feet before making the turn, not just 50 feet as mentioned in option A. Additionally, you should never speed up before making the turn, as option B suggests; rather, approach the intersection at a safe and controlled speed. Beginning in the rightmost lane, as mentioned in option C, is not appropriate for a left turn. Instead, you should start from the lane designated for left turns or the lane furthest to the left if no turn lanes are marked. Lastly, regarding option D, you should not begin turning as soon as your cab passes the crosswalk. The correct procedure involves waiting until you reach the designated turning point in the intersection and ensuring the path is clear before proceeding with the turn.