You are building a Front Controller using a JSP page and you need to determine if the user’s session hasNOT been created yet and perform some special processing for this case.<br /> Which scriptlet code snippet willperform this test?()
A、<% if ( request.getSession(false) == null ) {// special processing} %>
B、<% if ( request.getHttpSession(false) == null ) {// special processing} %>
C、<% if ( requestObject.getSession(false) == null ) { // special processing} %>
D、<% if ( requestObject.getHttpSession(false) == null ) { // special processing} %>