Select the most appropriate option to fill in the blank.
In the early autumn fierce fighting took place, the __________ Serbians bearing a prominent part.

Correct option is B

The correct option to fill in the blank is (b) gallant.
Explanation:
· The sentence is referring to brave soldiers (Serbians) fighting fiercely. "Gallant" means brave and heroic.
· (Hindi: वीर, बहादुर)
Example: The gallant soldiers fought till the end.
Other options:
· (a) Cowardly – Lacking courage (डरपोक) – opposite of context
· (c) Unabashed – Not embarrassed (बेखौफ) – not appropriate
· (d) Bore – Uninteresting person or verb form (उबाऊ/छेदना) – irrelevant