Modern In-Air Nuclear Bomb Tests Have Created an Extra High ${ } ^ { 14 } \mathrm { C }$

Multiple Choice

Modern in-air nuclear bomb tests have created an extra high level of ${ } ^ { 14 } \mathrm { C }$ in our atmosphere. If future archaeologists date samples from this era, without knowing of this testing, will their carbon-14 dates be too young, too old, or correct? If correct, why?

A) Too young.
B) Correct, since ${ } ^ { 14 } \mathrm { C }$ from bomb tests is different from that produced naturally.
C) Correct, because modern biological materials do not gather ${ } ^ { 14 } \mathrm { C }$ from bomb tests.
D) Too old.