When does it make financial sense to buy a call option?

What is the maximum potential loss for a call option buyer?

What happens to a call option buyer's investment if the underlying price goes down?

How is the intrinsic value (IV) of a call option upon expiry calculated?

What is the breakeven point for a call option buyer?

What is the profit potential for a call option buyer?

When does a call option buyer start making a profit?