To reduce fuel consumption, it is indicated to use the last gear whenever possible, even when you drive in the urban area, and to change the gears as quickly as possible until you reach the optimal gear. However, this does not mean that you must start off directly in the last gear. Ecological driving requires changing the gears as quickly as possible, so that the engine reaches an optimal speed regime. For example, at legal speeds in urban areas (up to 50 km/h), it is indicated to drive in 4th or 5th gear, if the engine operates correctly at that speed, in order to keep consumption low.
The correct answer is: A and B
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