A projectile is fired straight up from ground level. After t seconds, its height above the ground is s feet, where - 16². + 112t S=- For what time period is the projectile at least 160 feet above the ground? Select the correct choice below and fill in the answer boxes to complete your choice. OA. For the time period between (and not inclusive of) 160 ft above the ground. (Simplify your answers.) OB. For the time period between (and inclusive of) 160 ft above the ground. (Simplify your answers.) seconds and seconds and seconds the projectile will be at least seconds the projectile will be at least

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