There is an error in the given sentence. Identify the sentence that corrects the error:
"This lesser known heritage building is so beautiful as the Red Fort."

Correct option is B

The correct option is (b) "This heritage building is as beautiful as the Red Fort."
Error Explanation: The original sentence "This lesser known heritage building is so beautiful as the Red Fort." uses "so" incorrectly in a comparison.
The phrase "so...as" is not grammatically correct in English for making comparisons of equality.
The correct construction is "as...as" for comparisons indicating similarity in degree or quality.
Grammatical Rule Used: When making comparisons of equality between two subjects, the correct construction in English is "as...as." This structure is used to express that two entities share a similar degree of a certain quality.
Example:
· Correct: "She is as tall as her sister."
· Incorrect: "She is so tall as her sister."
Option (b) corrects the error by replacing "so" with the appropriate comparative construction "as," forming "This heritage building is as beautiful as the Red Fort," which correctly expresses that the lesser-known heritage building and the Red Fort share a similar degree of beauty.