Question

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driving activities where awareness and knowledge are important include:
observing railroad crossings
all of the above
passing
yielding the right of way
obeying speed limits
submit

Explanation:

Observing railroad crossings requires awareness of on - coming trains. Passing safely needs knowledge of traffic rules and awareness of surrounding vehicles. Yielding the right of way demands understanding of traffic regulations and awareness of other road users. Obeying speed limits involves knowledge of speed rules and awareness of speedometer and surroundings.

Answer:

B. All of the above