(A) SUPARCO
(B) SNGPL
(C) KRL
(D) All of these
🧠 Explanation:
Kahuta Research Laboratories (KRL) is Pakistan’s main laboratory related to nuclear power and nuclear weapons research. It was established in the 1970s to develop nuclear technology for energy and defense purposes. The term “laboratory” is a common noun, while “KRL” is a proper noun naming this specific research institution. Alternatives in discussion could include “nuclear research center” or “nuclear lab,” but KRL is the officially recognized facility. For PPSC-level exams, it is important to know KRL as the key institution responsible for Pakistan’s nuclear program and related scientific advancements.