&gt; x &lt;- c&#40;&quot;a&quot;, &quot;b&quot;, &quot;c&quot;, &quot;c&quot;, &quot;d&quot;, &quot;a&quot;&#41;
A. x[0:4]
B. x[1:4]
C. x[0:3]
D. All of the mentioned
Answer:A
&gt; x &lt;- c&#40;&quot;a&quot;, &quot;b&quot;, &quot;c&quot;, &quot;c&quot;, &quot;d&quot;, &quot;a&quot;&#41;
A. x[0:4] B. x[1:4] C. x[0:3] D. All of the mentioned
Explanation:The [ operator can be used to extract multiple elements of a vector by passing the operator an integer sequence. 4. What would be the output of the following code ?