Answer the following questions:

1. Keys in a Ruby Hash can be__.

A.String type only

B.	Integer type only

C.	String and integer type only

D. Any Ruby object type

2.

Given the following hash:

names = Hash["a" => "Marc", "b" => "Cheyenne", "c" => "Alexander", "d" => Mia]

Which one of the following returns "true"?

A.	names.has_key?(Mia")

B.	names.has_key?(a)

C.	names.has_key(Marc)

D.

names.has_key?(a")

3.

Please fill the blanks.

names._____ do |key, _____| puts "#{key} is #{value}" end

A.	each; value

B	merge; value

C

each; =>

D	merge; => 4. True or False. We can "rocket" a key to more than one value in a hash.