Choose the correct sequence to form a meaningful sentence:
(A) playing
(B) children
(C) were
(D) in the park

Correct option is C

Option (c) is the correct order of the given sentences.
Correct sequence: BCAD → “children were playing in the park.”
· (B) children: Subject (plural noun) must open the sentence.
· (C) were: Auxiliary verb agrees with plural subject “children.”
· (A) playing: Present participle forms the past continuous with “were.”
· (D) in the park: Adverbial/prepositional phrase giving place typically follows the verb phrase.
· Thus, the well-formed sentence is “Children were playing in the park.”