The sentence is divided into four segments: (A), (B), (C), and (D). Identify the segment that contains a grammatical error. If the sentence is both grammatically and contextually correct, select “No error” as the correct answer.

He described the plan (A)/ as both effective (B)/ and was easy to implement (C)/ within the current budget. (D)

Correct option is C

Sentence given:
He described the plan (A)/ as both effective (B)/ and was easy to implement (C)/ within the current budget. (D)
Step 1: Spot the error
Look at (C): “and was easy to implement.”
· Rule: When using the correlative conjunction “both … and …”, the parts must be parallel in structure.
· Here:
· First part: effective (adjective).
· Second part: was easy to implement (clause with verb “was”).
This breaks parallelism.
Correct parallel form: “both effective and easy to implement.”
So the error is in (C).
Step 2: Grammar rule
Parallelism Rule with “both … and …”
· The elements connected by “both … and …” should be in the same grammatical form.
· Example:
· Incorrect: The trip was both enjoyable and it gave us new experiences.
· Correct: The trip was both enjoyable and memorable.
Step 3: Corrected sentence
He described the plan as both effective and easy to implement within the current budget.
Correct Answer: (c) C