Transposable elements:
a. aid in fixing and repairing dna damage.
b. are not present in wildtype cells, but can be introduced and used in a lab setting.
c. all of the above.
d. none of the above.

b

Explanation:

Correct option is b.

Explaination

Transposable elements are shorts sequence of DNA that have the ability ton move from one location to the other location in a genome, and often make duplicate copy of themselves in the process. The process by which these sequences are copied and inserted into anew site in genome is called Transcription. Genome generally contain many variety of transposable elements. Are not present in wild type cells, but can be introduced and used in a lab setting.

its temperature is increasing. this causes molecular vibrations to increase.