The correct answer is: E. No error
The sentence is grammatically correct. The subject and verb agree, and the sentence is complete. The sentence is also clear and easy to understand.
Option A: Our system of assigning
This is the subject of the sentence. The subject and verb agree, so this is not an error.
Option B: different jobs to different people
This is the object of the verb “assigning.” The object is a prepositional phrase, which is a group of words that begins with a preposition and ends with a noun or pronoun. The prepositional phrase “to different people” modifies the verb “assigning,” so this is not an error.
Option C: should be based on
This is the verb of the sentence. The verb agrees with the subject, so this is not an error.
Option D: their strengths and weaknesses
This is the object of the preposition “on.” The object is a noun phrase, which is a group of words that begins with a noun. The noun phrase “their strengths and weaknesses” modifies the preposition “on,” so this is not an error.
Option E: No error
This is the correct answer. The sentence is grammatically correct, so there is no error.