Final answer:
Option a, with the words 'brutal' and 'blinding,' best revises sentence 17 to create a more unpleasant mood.
Step-by-step explanation:
The best way to revise sentence 17 using connotative words to create a more unpleasant mood is option a: But brutal weather-such as blinding rains-also often slowed us down.
This revision uses the word 'brutal' which conveys a harsh and unforgiving connotation, and 'blinding' which suggests that the rains were so heavy that they impaired vision, both adding to the unpleasant mood of the narrative.
Connotation refers to the emotional, cultural, or suggested implications and associations that a word carries beyond its literal meaning. It's the extra layer of meaning that a word may evoke, beyond its dictionary definition.
For example:
The word "home" has positive connotations, often associated with warmth, comfort, and security.
"Snake" might carry negative connotations related to deceit or danger.