i think you will find options issued at low prices and having...

i think you will find options issued at low prices and having very a close exercise price to the fully paid shares such as these will often lack any kind of premium & more likely trade at a discount as the prices move higher.

There is little extra leverage offered in buying options at 18.5c then full paid shares are there for 20c...

Premiums in option prices are much more greatly realised where there is a much larger gap in price & hence a much larger degree of leverage offered.