The correctly punctuated sentence is : D. Sparky, you are one sweet puppy
Punctuation is used to determine the flow of the sentence and how the sentence should be read. The best answer is option D. The other options seems to create unecessary delay when we read the sentence
hope this helps
Answer:
A. to prevent the spread of malaria in tropical areas
Explanation:
Dichlorodiphenyltrichloroethane (DDT) is an insecticide used in agriculture. The United States banned the use of DDT in 1972, but some countries still use the chemical. DDT has also been used in the past for the treatment of lice. It is still in use outside the United States for the control of mosquitoes that spread malaria. DDT and its related chemicals persist for a long time in the environment and in animal tissues.
Theme is there central idea of the story
