Question

British author Anthony Trollope initially didn't want to work for the post office. He rose through the ranks to become Assistant Postal Surveyor. The post office eventually adopted his idea for convenient and secure free-standing mailboxes.

What is the best way to combine these simple sentences into one compound sentence?
A.
British author Anthony Trollope initially didn't want to work for the post office he rose through the ranks to become Assistant Postal Surveyor the post office eventually adopted his idea for convenient and secure free-standing mailboxes.
B.
British author Anthony Trollope initially didn't want to work for the post office, but he rose through the ranks to become Assistant Postal Surveyor, and the post office eventually adopted his idea for convenient and secure free-standing mailboxes.
C.
British author Anthony Trollope initially didn't want to work for the post office so he rose through the ranks to become Assistant Postal Surveyor but the post office eventually adopted his idea for convenient and secure free-standing mailboxes.
D.
British author Anthony Trollope initially didn't want to work for the post office, but he rose through the ranks to become Assistant Postal Surveyor and the post office eventually adopted his idea for convenient and secure free-standing mailboxes.

Answer 1

D? But B also sounds good. But I'm leaning mroe towards D. <3

Answer 2

it was b XD

Answer 3

DAMN