True or false: the explicit location is found inside the query

That statement is true - assuming that you are talking about queries in search engine.

for example, John from London type this query on his search engine " Mc Donalds Manchester Area"

Macnhester is the explicit location, because it is found insde the query

Meanwhile, London become the implicit location because it is the location where John Type the query

Idkk take a guess i am no

Ithink the answer you are looking for is (b).