I think the correct answer would be B
Reatna. sorry may have spelling error.
Answer:
secrete gastric juice and protective mucus
Explanation:
Answer: D
Effective
Explanation:
To be effective means to achieve results, make right decisions, and to successfully carry them out so they achieve organizations goals and other set goals. Effectiveness is the capability to produce a desired result or desired output.
You say something is effective when it has an intended or expected outcome.
Achieving a desired result is being effective.