Name the micro structural products of 4340 alloy steel specimens

Name the micro structural products of 4340 alloy steel specimens that are first completely transformed to austenite, then cooled to room temperature at the following rates:
(a) 10째C/s,
(b) 1째C/s,
(c) 0.1째C/s, and
(d) 0.01째C/s.