The Interests that are the subject of this Option Agreement shall vest upon the Effective Date and are exercisable respectively for a period of eighteen months, until January 19, 2019. All interests purchased pursuant to the Agreement will bear a Rule 144 restrictive legend and shall be Restricted Common Stock within the meaning of Rule 144 of the Securities Act, as that term is defined in Title 17 Part 230.144 of the Federal Code of Regulations. As such, the interests may not be resold in the public markets or transferred unless Company registers them under Section 5 of the Securities Act, or has received an opinion of counsel reasonably satisfactory to Company that such resale or transfer is exempt from the registration requirements of the Securities Act.