Answer:
1. d. ration
A ration is a limited amount of something.
2. c. smolders
Smolders means to burn slowly but with no flame, only smoke.
3. b. trudge
This means having to walk slowly as if one is having to difficult to walk.
4. a. gallant
Gallant is a synonym of brave.
5. d. lukewarm
A lukewarm object is neither hot nor cold.
6. b. clatter.
Clatter is a sound made when hard object continually hit each other.
7. a. awkward.
Awkward situations are embarrassing.
8. c. scholar
A scholar is someone who has studied a subject intensively and is therefore skilled in it.
9. b. plentiful.
Plentiful as the term suggests means to having a lot of something.
10. d. weary.
A weary person is a tired person.
11. c. reserve.
To reserve something is to store it up for a later day.
12. a. volunteer.
Volunteering means to work without pay. Mostly done to gain experience or as altruistic charitable endeavors.