His dream that he will be a B.C.S cadre finally came true. The underlined part is-
His dream that he will be a B.C.S cadre finally came true. The underlined part is- সঠিক উত্তর a noun clause
An appositive is a noun phrase that comes after another noun phrase (its antecedent) to provide extra information about it. যদি প্রশ্ন করা হয় What was his dream? তাহলে উত্তর হয়- he will be a B.C.S Cadre. অর্থাৎ His dream এবং he will be a B.C.S Cadre একই ব্যাপার। সুতরাং এটি একটি noun clause.