Create and store a list containing a single member: the vector c(7,7,NA,3,NA,1,1,5,NA). Then, do the following:

i. Name the member \"alpha\".

ii. Confirm that the list doesnt have a member with the name \"beta\" using the appropriate logical valued function.

iii. Add a new member called beta, which is the vector obtained by identifying the index positions of alpha that are NA.

Identify the class of the following objects. For each object, also state whether the class is explicitly or implicitly defined.

i. foo

ii. bar

iii. baz

iv. qux

v. quux