What did agatha christie do during world war 1?

Agatha Christie spent World War One in Torquay. She served as a nurse at the Red Cross Hospital in the Town Hall, which is when she began her first novel. ... Aged 84, in an interview with the Imperial War Museum she recollected her experiences in the hospital during the war.

(please mark brainliest)

i need to see the answer to answer the question

the exclusive possession or control of the supply or trade in a commodity or service.