B (i’m just copying someone’s answer cause i only have 1 more photo left to take)
Significant. Fractional sounds like "fraction," which is typically meaning a value less than one, but not quite zero. AKA, very small.
The opposite of a very small change would be a very big change. Which is what a significant change is.
Jefferson replaced Johnston with Hood because he became impatient with Johnston's strategies and Hood was more aggressive.
Margie and Tommy had mechanical teachers with large black screens on which all the lessons were shown and questions were asked. These mechanical teachers had a slot in which the students had to put their homework and test papers.
