Which of the following will change the expression above to search for the pattern "MINI" which must be all uppercase?
```
preg_match("/\b(car[[:alpha:]]+)\b/i", $string)
```
a. change "car" to "MINI" in the expression
b. delete the "i" at the end of the expression
c. add the character class [:upper:] to the expression
d. do all of the above
b. delete the "i" at the end of the expression
Computer Science & Information Technology
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