Correct option is B
The correct one-word for the given group of words is
(b) Cartographer.
A
cartographer is a person who
draws, designs, and produces maps (physical or digital) using geographic information and surveying data.
(Hindi meaning: मानचित्रकार)
Example: The cartographer created a detailed map of the mountain trails for hikers.
Meanings of the given other options:
•
(a) Topographer: a person who studies/makes detailed descriptions of land surface features and terrain.
(Hindi: स्थलाकृतिक विशेषज्ञ)
•
(c) Geodesist: a specialist in measuring and understanding Earth’s shape, gravity field, and spatial coordinates.
(Hindi: भू-आकृति/भू-मापन विशेषज्ञ)
•
(d) Archivist: a person who manages and preserves historical records and documents.
(Hindi: अभिलेखागार अधिकारी)