The expanded form of a number breaks down the number into its individual place values.
(A) 7·1000+8·100+3· 1/100 is in expanded form.
(B) 4·100+9·100+3· 1/10 +4· 1/10 is in expanded form.
(C) 71·10+4·1+6· 1/100 +5· 1/1000 is in expanded form.
(D) 5·1000+5·100+5·1+5·1/100 is in expanded form.
(E) 3·1000+8·1000+9·1/1000 is in expanded form.
(F) 9·1000+3·101+5· 1/10 is not in expanded form because 3·101 is not a specific place value.
Therefore, the expanded form of a number is given by options A, B, C, D, and E.