Given 6 files, which files does ls *.txt match? ls file?.txt? ls file[0-9].txt?

Exam questions that reference this lab question

• CSCD240-E1-A-Q28 directly_tests Files: data, data1, data12, data2. Display only data1 and data12 via ls.
• CSCD240-E1-C-Q12 directly_tests Which glob matches filenames starting with "log" and ending with any digit?