What should you anticipate, if you want to overtake?

You answered everything correctly. In winter conditions like the one shown, you must always anticipate that a cyclist may ride unpredictably due to the slippery road. You also need to expect an extended stopping distance, because snow and ice make braking less effective. Additionally, there's a risk of skidding for both your own vehicle and the cyclist when overtaking, due to the reduced tire grip. Always approach overtaking with extra caution in such conditions. This combination of risks is why all three answers are correct for the situation shown.