Which one of the following is an exact example of artificial radioactivity?

Options

A. `._(0)n^(1) + ._(11)Na^(23) to ._(11)Na^(24) + gamma, ._(11) Na^(24) + ._(1)H^(1) to ._(12)Mg^(24) + ._(0)n^(1)`
B. `._(2)He^(4) + ._(7)N^(14) to ._(8)O^(17) + ._(1)H^(1), ._(8)O^(17) + ._(0)n^(1) to ._(7)O^(18) + gamma`
C. `._(2)He^(4) + ._(13)Al^(27) to ._(15)P^(30) + ._(0)n^(1), ._(15)P^(30) to ._(14)Si^(30) + ._(1)e^(0)`
D. `._(89)Ac^(228) to ._(90)Th^(228) + beta, ._(90)Th^(228) to ._(88)Ra^(224) + alpha`

Answer

c

Explanation

Nucleus bombarded should be stable and nucleus produced should be radioactive