Which of the following is a tertiary (
3
∘
) amine?

Select the correct answer below:



A molecule structure reads: H Subscript 3 C single bond C H Subscript 2 single bond N with two free electrons to the right single bond C H Subscript 3 to the above and C H Subscript 3 to the below;


A molecule structure like alkane structure consists of five carbons reads: H Subscript 3 C labeled number 4 single bond C H Subscript 2 labeled 3 single bond C H Subscript 2 labeled number 2 single bond C H Subscript 2 labeled number 1 single bond N with two free electrons to the above H Subscript 2


A molecule structure like alkane structure consists of five carbons reads: H Subscript 3 C labeled number 3 single bond C H Subscript 2 labeled 2 single bond C H Subscript 2 labeled number 1 single bond N with two free electrons to the above attached with H to the below by single bond and single bond C H Subscript 3.

all of the above