Towie & others
Thanks for your comments.
Options will consoliate to a strike of $1.84 (40x4.6c).
At $2.40 they may trade at 94c (30% volatilty).
At 60c there is an arbitrage opportunity: $1.59 invested at 5% for 3 years (to fund the strike price of $1.84) plus a 60c option = $2.19 total cost. This is less than the price of the shares of $2.40. Hence the options should trade at a minimum of 81c ($2.40-$1.59).
DYOR.