For the following question, arrange the sentences A, B, C, and D between sentences 1 and 6 to form a logical sequence with sentence 1 and sentence 6 as the starting sentence and the concluding sentence respectively:
(1) Valentina Tereshkova was born to a peasant family in the Yaroslavl region of the former USSR in 1937.
(A) Later, at the age of 24, she applied to become a cosmonaut.
(B) Soon after starting work in a textile mill at the age of 18, Valentina joined an amateur parachuting club.
(C) Earlier that year, in 1961, the Soviet space program began to consider sending women into space.
(D) Yaroslavl is now a part of Russia.
(6)
The Soviets were looking for another 'first' with which to beat the United States.