120g of Chromium-48 decays. After 6 half-lives, how much of the original nuclei would
remain?

The correct answer is d

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later

It dont even matter because at the end of thre day we gone life like it ius s

The answer to the question is d