CROO, page-7

People are paying a premium because of the time value of money.
E.g say you want to buy 100,000 shares now at 0.036 it will cost you $3600.
If you want to hold the stock for long term, you can buy options instead, 100,000 x0.023 cost you $2300.

Say in 2 years time you want to sell your shares and the price is now 10 cents.

you convert your options it will cost you 0.025 cents per option so another $2500 in total. So total cost is 2300 +2500 = $4800, which you can sell immediately for $10,000 dollars.
the key here is, you paid $1300 less overall during the whole 2 years. Which you could have used to invest in other things and made more money. (Time value of money- a dollar today is worth more than a dollar tomorrow)

If you were to buy the shares directly, it would have cost you $3600 upfront, meaning you will have less money to do other things. This is just a financial thing, time value of money opportunity costs etc... Its a premium