Question

Q: Which of the following group has only trivial subgroups​

Answer 1

Answer:

Given any group G, the group consisting of only the identity element is a subgroup of G, and, being the trivial group, is called the trivial subgroup of G. The term, when referred to "G has no nontrivial proper subgroups" refers to the only subgroups of G being the trivial group {e} and the group G itself.