An Old Piece of Dead Wood Contains 38% of the ¹⁴C

An old piece of dead wood contains 38% of the ¹⁴C abundance of a living sample. How old is it? The half-life of ¹⁴C is 5730 years.)

A) 3.95 × 10³ years
B) 8.78 × 10³ years
C) 8.00 × 10³ years
D) 7.66 × 10³ years
E) 3.47 × 10³ years