The following sentence has been split into four segments. Identify the segment that contains a grammatical error.

It is a cheap reasonably / restaurant in this part of the town / where you can eat / delicious food.  

The correct answer is Option 3)

Key Points

• In the third part of the given sentence, the order of adjectives is incorrect.
• The correct order should be: opinion + size + age + shape + color + origin + material + purpose.
• In the given sentence, reasonably is an adverb and cheap is an adjective.
• Therefore, the correct order should be "reasonably cheap" instead of "cheap reasonably".
   

Hence, the correct statement is: It is a reasonably cheap restaurant in this part of the town where you can eat delicious food.

Additional Information

• The order of adjectives is crucial for the sentence to make sense and sound natural.
• Adverbs usually modify adjectives, verbs, or other adverbs, and should be placed in the correct order to maintain the intended meaning of the sentence.