If I want to use extended regex features in a grep statement, what flag do I need to use?Group of answer choices-x-R-E-r

What does the grep command do?Group of answer choicesEdits text in a fileLists directory contentsChanges file permissionsSearches for patterns within files

In extended regex, what is the optionality character?Note: Be precise in your answer. The character must be expressed exactly as it would be in a bash regex

Exons are _____.Group of answer choicesincised (cut)expressed

Select the correct answerWhich module in Python supports regular expressions?Optionsregexnone of the mentionedpyregexre

Select the correct answerWhat will be the output of the following Python code?import reline = 'how are you'result = re.match(r'(.*) (.*?) (.*)', line)print(result.group(2))Optionsyouarehow are youhow