On April 6, 2019, Ben purchased a house to use as residential rental property. He made extensive repairs to the house and had it ready for rent on July 5, 2019. He began to advertise the house for rent in July and actually rented it beginning September 1, 2019. When is the house considered to be placed in service for the purposes of rental expenses?

A. January 1, 2019

B. April 6, 2019

C. July 5, 2019

D. September 1, 2019