Which of the following statements are correct in association with the superposition theorem?a) It is applicable to the network having more than one source.b) It is used to determine the current in a branch or voltage across the branch.c) It is applicable to direct current circuits only.d) It is applicable to networks having linear and bilateral elements.Select the correct answer using the code given below:

• A. a, b, and c
• B. a, b, and d
• C. a, c, and d
• D. b, c, and d