In a JSP-centric web application， you need to create a catalog browsing JSP page. The catalog is stored asa List object in the catalog attribute of the webapp’s ServletContext object.  Which scriptlet code snippetgives you access to the catalog object？（）

• A、<% List catalog = config.getAttribute（"catalog"）； %>
• B、<% List catalog = context.getAttribute（"catalog"）； %>
• C、<% List catalog = application.getAttribute（"catalog"）； %>
• D、<% List catalog = servletContext.getAttribute（"catalog"）； %>