Question: The regular expression CO.S will return (instances separated by spaces): a) COS COIS CO1S CO@S b) COIS COBS CO1S CO@S c) COIS COIIS COIIIS COIIIIS

The regular expression CO.S will return (instances separated by spaces):

a) COS COIS CO1S CO@S

b) COIS COBS CO1S CO@S

c) COIS COIIS COIIIS COIIIIS

d) COS OCS SCO OSC

e) COS CO1S CO2S CO3S

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