Which Of The Following Extracts First Four Element From The #278

Which of the following extracts first four element from the following R vector?</p> <pre><code class="language-rsplus"> > x <- c("a", "b", "c", "c", "d", "a") </code></pre>

This multiple choice question (MCQ) is related to the book/course gs gs110 R Language. It can also be found in gs gs110 R - Data Storage, Formats, Objects and Operations - Subsetting - Quiz No.1.

 > x <- c("a", "b", "c", "c", "d", "a")