单选题Click the Exhibit button. Assuming the tag library in the exhibit is imported with the prefix stock，which custom tag invocation outputsthe contents of the variable exposed by the quote tag？（）A ；stock：quoteensp；symbol="；SUNW"；ensp；/；${var}B ${var}.ensp；；stock：quoteensp；symbol="；SUNW"；ensp；/；C ；stock：quoteensp；symbol="；SUNW"；；.ensp；${var}.ensp；；/stock：quote；D ；stock：quoteensp；symbol="；SUNW"；ensp；var="；quote"；ensp；/；${quote}
单选题
Click the Exhibit button. Assuming the tag library in the exhibit is imported with the prefix stock，which custom tag invocation outputsthe contents of the variable exposed by the quote tag？（）
A
<；stock：quote&ensp；symbol="；SUNW"；&ensp；/>；${var}
B
${var}.&ensp；<；stock：quote&ensp；symbol="；SUNW"；&ensp；/>；
C
<；stock：quote&ensp；symbol="；SUNW"；>；.&ensp；${var}.&ensp；<；/stock：quote>；
D
<；stock：quote&ensp；symbol="；SUNW"；&ensp；var="；quote"；&ensp；/>；${quote}
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