Part II: Regular Expression 1. Chose match(es) for each given basic/extended regular expression (maybe multiple correct matches) and describe the pattern of matched string for 3), 4), 5), 6), 11). e.g. 'ab+a' (extended regex a) ababa b) aba c)abba d)aabbaa e)aa Answer: b,c; Pattern : The matched string should begin and end with a' and 'b'occurs at least once between leading and ending 'a') aabbaa (e)aa Note: 1) to 5) are basic regexes: 1) a[ab]*a' (a)ababa (b) aaba (C) aabab 2) 'a bc)? (a) abc (b) a bc)? (c) abc 3) [ind]** (a) wind (b) window (C) end 4) '[a-z] + [a-z) (a) a+b+c (b) +b C) x e) abcbc (d) x+1 (e) x+a