Based on your knowledge of word parts, which sentence uses the word introspection correctly?

a. because of his experience as a firefighter, matthew provided a unique introspection.
b. gillian stood up straight and braced herself for her mother's introspection of her outfit.
c. samuel waited patiently for the contractors to come and perform the building introspection.
d. after some soul-searching and introspection, peter knew that it was time for him to move on.

The answer to the question above would be that the sentence that uses the word "introspection" correctly would be the following one: After some soul-searching and introspection, Peter knew that it was time for him to move on.  That is, the correct option would be D.

According to the Cambridge dictionary, "introspection" means "examination of and attention to your own ideas, thoughts and feelings". The example talks about soul-searching and getting to know oneself, that's why D is the correct answer.  

what is this from, i cant tell what language he uses without the piece of literature

1. c. zone of saturation, water table, zone of aeration

2. c. condensation

3. b.   conservation and condensation

4. c. groundwater dips below the water table in an artesian well

5. d. oceans

6. c. geyser

7. d. groundwater

8. b. 70%

9. d. transpiration

10. c.   desalination