The word manipulation has a negative connotation in this passage and it stresses that the changes made were unnatural.
What is a Connotation?
This refers to the implied meaning of a word or phrase as it is used in a passage or text which is different from its original meaning.
With this in mind and from the complete text, the word "manipulation" has a negative connotation because it shows that a person was deceived into doing something and shows that the changes were unnatural.
Read more about connotations here:
https://brainly.com/question/1529095
