Colonel Graff taking Ender's hand is ironic because Graff is not suppose to show any kind of emotion towards Ender

Ender is going to a school to become a soldier and fight for all humankind.

Graff is angry with Ender

None of the above

"dyed plant fibers have been found at dzudzuana cave in georgia, dating back to 30,000 years ago." a good paraphrase of this sentence should include: a. how the dyed plant fibers were located within the different caves. b. how old the dyed plant fibers are at dzudzuana cave in georgia. c. the types of plant fibers found in dzudzuana cave in georgia. d. the types of dyes made from plant fibers thousands of years ago.