To use the external DTD we have the syntax

A. <?xml version=”A.0” standalone=”no”?>

<! DOCTYPE DOCUMENT SYSTEM “order.dtd”?>

B. <?xml version=”A.0” standalone=”yes”?>

<! DOCTYPE DOCUMENT SYSTEM “order.dtd”?>

(3 )<?xml version=”A.0” standalone=”no”?>

<! DOCTYPE DOCUMENT “order.dtd”?>

D. <?xml version=”A.0” standalone=”yes”?>

<! DOCTYPE DOCUMENT SYSTEM “order.dtd”?>

Ans: A