298. Where a taxpayer has granted a renewal or extension of an option referred to in section 294, 295 or 295.1, the following rules apply:(a) for the purposes of the said sections, each renewal or extension is deemed to be an option on the day the renewal or extension is granted;
(b) for the purposes of subparagraph iv of subparagraph b of the first paragraph of section 248 and sections 295 to 297, the option and each renewal or extension are deemed to be the same option; and
(c) section 297 applies to each taxation year in which a renewal or extension was granted.