Correct option is A
The sentence with no spelling error is (a) "Solar panels may also reflect bats’ echolocation calls."
• The correct spelling is used for all words in option (a), ensuring the sentence is free of errors.
Meanings of all the other given options and their errors:
• Options (b) and (c) both misspell "echolocation" as "ecolocation."
• (d) "Solar palens may also reflect bats’ echolocation calls." - The word "palens" is a misspelling of "panels."