Select the option that can be used as a one-word substitute for the given group of words.
A journey undertaken by a group of people with a particular purpose, especially that of exploration or research.

Correct option is B

The correct one-word for the given group of words is (b) Expedition.
· Expedition: A journey with a specific goal, especially for research, discovery, or war (अन्वेषण या अभियान यात्रा)
· Example: They went on an expedition to the Arctic to study polar bears.
Meanings of the other options:
· (a) Voyage – a long journey by sea or space (समुद्र या अंतरिक्ष यात्रा)
· (c) Sojourn – a temporary stay (अस्थायी निवास)
· (d) Pilgrimage – a religious journey (तीर्थ यात्रा)