seqNum = 0
ranNum = rand(2)
extractedArray = []
letterArray = [["a","b","c","d"],["A","B","C","D"]]

while seqNum < 2
  extractedArray.push(letterArray[seqNum][ranNum])
  seqNum += 1
end

puts "Array contents: " + extractedArray.to_s
puts "String created: " + extractedArray.join(sep=" ")

Array contents: bB
String created: b B