An search is when the buyer looks for information beyond personal knowledge to help make the buying decision, such as checking the Internet, asking a friend, or visiting a showroom.

External

Explanation: External search could be explained as the additional information gathered beyond an individual's personal knowledge or experience in a bit to influence the individual's decision on a particular product or topic. This additional information could include; information sought from friends and families, online or internet research on relevant site, blogs or publications.

Therefore, a buyer who asks a friend, checking the internet or visiting a showroom or make other enquiries beyond his personal knowledge in other to make buying decision is making an external search.

the answer will be d

answer inspecting packets in isolation from their context;