Percy finds a rock in his backyard. it looks like several pebbles cemented together.
percy has found

a. a foliated rock
b. an extrusive igneous rock
c. an intrusive igneous rock
d. a clastic sedimentary rock

A clastic sedimentary rock

Explanation: the clastic sedimentary rock is called conglomerate. It is also called pudding stone, it is made of rounded pebbles cemented together by mud or clay

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.