What Resistance Must Be Put in Series with A $30 - \mathrm { mH }$

What resistance must be put in series with a $30 - \mathrm { mH }$ inductor at $4000 \mathrm {~Hz}$ to have a total impedance of $8.0 \times 10 ^ { 4 } \Omega$ ?

A) $6.0 \times 10 ^ { 4 } \Omega$
B) $7.0 \times 10 ^ { 4 } \Omega$
C) $30 \times 10 ^ { 4 } \Omega$
D) $8.0 \times 10 ^ { 4 } \Omega$
E) $5.0 \times 10 ^ { 4 } \Omega$