Question: 6. What will be the output of the following C++ code?<div class="hk1_style-wrap4"><div class="hk1_style-wrap3"><div class="hk1_style-wrap2"><div class="hk1_style-wrap"><div class="hk1_style"><div class="cpp"><ol><li class="li1"><pre class="de1"> <span class="co2">#include &lt;iostream&gt;</span></pre></li><li class="li1"><pre class="de1"> <span class="kw2">using</span> <span class="kw2">namespace</span> std<span class="sy4">;</span></pre></li><li class="li1"><pre class="de1"> <span class="kw2">template</span> <span class="sy1">&lt;</span><span class="kw2">class</span> T<span class="sy1">&gt;</span></pre></li><li class="li1"><pre class="de1"> <span class="kw2">class</span> A</pre></li><li class="li1"><pre class="de1"> <span class="br0">{</span></pre></li><li class="li1"><pre class="de1"> <span class="kw2">public</span><span class="sy4">:</span></pre></li><li class="li1"><pre class="de1"> A<span class="br0">(</span><span class="kw4">int</span> a<span class="br0">)</span><span class="sy4">:</span> x<span class="br0">(</span>a<span class="br0">)</span> <span class="br0">{</span><span class="br0">}</span></pre></li><li class="li1"><pre class="de1"> <span class="kw2">protected</span><span class="sy4">:</span></pre></li><li class="li1"><pre class="de1"> <span class="kw4">int</span> x<span class="sy4">;</span></pre></li><li class="li1"><pre class="de1"> <span class="br0">}</span><span class="sy4">;</span></pre></li><li class="li1"><pre class="de1"> <span class="kw2">template</span> <span class="sy1">&lt;</span><span class="kw2">class</span> T<span class="sy1">&gt;</span></pre></li><li class="li1"><pre class="de1"> <span class="kw2">class</span> B<span class="sy4">:</span> <span class="kw2">public</span> A<span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span></pre></li><li class="li1"><pre class="de1"> <span class="br0">{</span></pre></li><li class="li1"><pre class="de1"> <span class="kw2">public</span><span class="sy4">:</span></pre></li><li class="li1"><pre class="de1"> B<span class="br0">(</span><span class="br0">)</span><span class="sy4">:</span> A<span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">A</span><span class="br0">(</span><span class="nu0">100</span><span class="br0">)</span> </pre></li><li class="li1"><pre class="de1"> <span class="br0">{</span></pre></li><li class="li1"><pre class="de1"> <span class="kw3">cout</span> <span class="sy1">&lt;&lt;</span> x <span class="sy2">*</span> <span class="nu0">2</span> <span class="sy1">&lt;&lt;</span> endl<span class="sy4">;</span></pre></li><li class="li1"><pre class="de1"> <span class="br0">}</span></pre></li><li class="li1"><pre class="de1"> <span class="br0">}</span><span class="sy4">;</span></pre></li><li class="li1"><pre class="de1"> <span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span></pre></li><li class="li1"><pre class="de1"> <span class="br0">{</span></pre></li><li class="li1"><pre class="de1"> B<span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span> test<span class="sy4">;</span></pre></li><li class="li1"><pre class="de1"> <span class="kw1">return</span> <span class="nu0">0</span><span class="sy4">;</span></pre></li><li class="li1"><pre class="de1"> <span class="br0">}</span></pre></li></ol></div></div></div></div></div></div>
Options:
100
200
error
runtime error
Answer: C