ILL GIVE BRAINLIEST IF THESE ARE CORRECT! 1.What is the expanded form of this number?

503.208

A.(5×100)+(3×1)+(2×1/100)+(8×1/100)

B.(5×100)+(3×1)+(2×1/10)+(8×1/100)< br />
C.(5×100)+(3×1)+(2×1/10)+(8×1/1,000 )

D.(5×100)+(3×1)+(2×1/100)+(8×1/1,00 0)

2. What is this number in standard form?

seventy-one and ninety-two thousandths

3. What is this number in standard form?

(4×100)+(1×10)+(3×1/10)+(5×1/1,000)