The correct answer is b. if i'm not mistaken, that rose is the reddest of all.
This is the correct answer because reddest is a superlative form and does not require MOST to be used.
Is a hopes that the grant money left over will go towards equipment for her team.
The correct sentence is the second one "She built a high-performance CPU".
The first sentence should not contain a comma and is incorrect. The third sentence is incorrect because there shouldn't be a dash before CPU. The fourth sentence is incorrect because CPU is not written with dashes.
