The answer is 100%. Three are observable, but the fourth is just a carrier.
I think there is a 50% chance of the coin landing on either side because the labelling of the coin will not affect the balance of the coin, and therefore won’t alter the flip. Labelling the coin ‘b’ and B’ will result in a coin flip no different from if the coin remained unlabelled.
They are comparable in light of the fact that they are both compound sources of vitality utilized by cells.
They are altogether different as far as arrangement and structure.
