The above mentioned sentence would have Option B, “Computer” as the answer.
The sentence contains the following nouns: Rahim, the computer and the others. While Rahim is a name, commonly used for the male gender, and almost close to being impossible for the feminine gender, “the others” is actually a collective noun, making both of them wrong and unsuitable options. While Option C, the computer is the correct answer, as it is a material (a device or a gadget used for technical work) and is not dependent on any gender.