f begin mathsize 14px style limit as x rightwards arrow a of f straight left parenthesis x straight right parenthesis equals L end style and begin mathsize 14px style f straight left parenthesis a straight right parenthesis equals undefined end style, Question 7Select one: a. the value of the limit, begin mathsize 14px style L end style, is not a real number b. the value of the limit, begin mathsize 14px style L end style, is undefined as begin mathsize 14px style x end style approaches begin mathsize 14px style a end style c. the value of begin mathsize 14px style f open parentheses x close parentheses end style gets closer to begin mathsize 14px style L end style as begin mathsize 14px style x end style approaches begin mathsize 14px style a end style d. the value of begin mathsize 14px style a end style is a restriction for the limit