Ann: Chairman & CEO Update & Review of Operations - Annual Report, page-126

Here's example for head vs option,
if share price reached $1, buying head, gain 18.34% (excluded brokerage), buying option, gain 48.65%.
if share price reached $2, buying head, gain 136% (excluded brokerage), buying option, gain 318%.

Options, WBTOA, you can exercise at any time, usually won't be exercised until approaching the expiration date January 2022.
The Options offer high leverage, high return but also high risk if went another direction.
DYOR.

	Column 1	Column 2	Column 3
0	WBT	$0.845
1
2	WBTOA	$0.37
3	- exercise price	$0.45
4	Total converted cost	$0.82
5
6	Scenario:
7	Total invested amount	$10,000
8		WBT	WBTOA
9	Holding	11,834	27,027
10
11	If share price fetched	$1.00	$0.55
12	Profit	$1,834	$4,865
13		18.34%	48.65%
14	If share price fetched	$2.00	$1.55
15	Profit	$13,668	$31,892
16		136.68%	318.92%