Which of the two statements from the following statements are correct?(A) Sampling - related error is subsumed under the category non-sampling error.(B) Sampling error doesn't occur in multi-stage cluster sampling.(C) Inaccurate sampling frame and non-response are examples of sampling related error.(D) There is an inverse relation between heterogeneity of population and sampling error.Choose the correct option:

• A. (A) and (C) only
• B. (A) and (D) only
• C. (B) and (D) only
• D. (B) and (C) only