Refer to the following code snippet and identify the use of thesubstring()andtoLowerCase()methods.
?
function pokerCard(cardSuit, cardRank) {
…
this.cardImage() = function() {
var suitAbbr = this.suit.substring(0, 1).toLowerCase();
return suitAbbr + this.rankValue + ".png";
}
}

A. To reset the text string in lowercase
B. To extract the last letter of the string in lowercase
C. To extract the first letter of the string in lowercase
D. To set the lowercase as default

Answer: C

Computer Science & Information Technology

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