7. Here are four spinners with different colours: A If the spinners are spun, B C () Which spinner has an even chance of showing blue? (ii) Which spinner has an even chance of showing red? (i) Which spinner has the least chance of showing yellow? (iv) Which spinner has one chance in three of showing yellow? (v) Which spinner has one chance in four of showing red? (vi) Which spinner has the greatest chance of showing red? D