A scientist wants to create a drug that will kill cancer cells upon absorption inthe intestines. In order for the drug to work effectively, it must not beabsorbed until it reaches the intestines. The scientist tests different aciditiesof compounds to determine which combination will keep the drug intact untilit reaches the intestines. What part of the engineering process is the scientistengaged in?A. TestingB. Determining a needC. Looking for improvementsD. Making a plan