In each of the following questions, a sentence is given with certain words in bold. Choose the pairs of such words which need to be interchanged so as to make the sentence grammatically correct and meaningful.

Agam’s lead singer and (A) frontman Harish Sivaramakrishan beams as he hears the (B) applause and the (C) sidelines all the way in the green room where we try to tune in for a quick (D) interview on the (E) catcalls of the Mathrubhumi Books International Literary Festival 2019.