Institution: Bangladesh Public Service Commission (BPSC) Exam: 35th BCS Preliminary Exam 2014
Topic: শব্দ, Subject: Bangla Bengali literature (বাংলা সাহিত্য)

Best Answer Explained in Below-:

The question 'শব্দ : কর্ণ ; আলো :' draws a parallel between elements that are perceived through sense organs. Here, "শব্দ" (sound) corresponds to "কর্ণ" (ear), indicating that the ear is the sensory organ responsible for hearing sound. To complete the analogy, we must identify the sensory organ that corresponds to "আলো" (light).

Among the provided options, "শোনা" (to hear), "বুদ্ধি" (intellect), "চক্ষু" (eye), and "অন্ধকার" (darkness), only "চক্ষু" stands out as it directly relates to light. The eye is the organ that enables us to perceive light, much like the ear allows us to perceive sound.

"শোনা" does not relate to light but to the function of hearing, while "বুদ্ধি" pertains to mental capacity and has no direct association with light. "অন্ধকার," meaning darkness, is the absence of light. Therefore, the only appropriate and logical answer is "চক্ষু," as it completes the analogy effectively by linking light to the sense organ that perceives it, just as sound is linked to the ear. This makes the correct answer C) চক্ষু.