The term sorting can be defined as: a. classifying students based on academic merit or potential. b. the use of education to improve one’s social standing. c. the process by which students are allowed to choose their own classes based on interest. d. a formalized system that places students on "tracks" (advanced, low achievers) that perpetuate inequalities.

Classifying students based on academic merit or potential ( A )

Explanation:

the term sorting is a term used to describe the arrangement or ordering of items or humans as seen in the question based on certain characteristics or similarities among  individuals, hence Classifying students on Academic merit or potential is a worthy criteria for sorting students.

Sorting is not meant to perpetuate inequalities therefore option D which states that it is A formalized system that places students on "tracks" that perpetuate inequalities is wrong.

c: in the east might be the correct answer

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.