In a population of 100 four-o'clock flowers there are 40 red-flowered plants (CRCR), 38 pink-flowered plants (CRCW), and 22 white-flowered plants (CWCW). What is the frequency of the CW allele in this population?
1) 0.32 or 32
2) 0.6 or 60
3) 0.41 or 41
4) 0.09 or 9
5) 0.52 or 52