1. Goldenbuz Ltd buys stock in babe Ltd over a number of months. The following lists these stock/share purchases. Date of the % of babe Ltd's Stock/share stock/share purchase that was purchased Total % of babe Ltd's Stock/shares now owned by goldenbuz Ltd Jan 1, 2018 8% 8% March 18, 2018 14% 22% April 13, 2018 30% 52% Nov 14, 2018 25% 54% What is the date that is referred to as the acquisition date of the subsidiary and why this date and not another