Which of the following sets of Library of Congress call numbers is in the correct order?


A. P201 .A251 1977, PA 203 .B252 1971, PE205 .C253 1954, PH202 .H255 1965
B. P201 .A251 1977, PE205 .C253 1954, PH202 .H255 1965, PA 203 .B252 1971
C. PA 203 .B252 1971, P201 .A251 1977, PE205 .C253 1954, PH202 .H255 1965
D. PE205 .C253 1954, PH202 .H255 1965, PA 203 .B252 1971, P201 .A251 1977

i have no clue how to figure out the order.. any ideas

http://www.loc.gov/catdir/cpso/lcco/