Question $1(1$ point$)$ What years are included in the present dataset?Question $2(1$ point$)$ What are the dimensions of the data frame? Dimensions refers to the number of rows and variables. Question $3(1$ point$)$ What are the variable $($column$)$ names?Question $4(1$ point$)$ Make a plot that displays the proportion $($not the ratio$)$ of boys born over time. What do you see? Does Arbuthnots observation about boys being born in greater proportion than girls hold up in the U$.$S$.?$ Include the plot in your response. To copy or save a graph from RStudio, click the Export button just above the preview of the graph. From there you can choose to Save Image or Copy to Clipboard.Question $5(1$ point$)$ In what year did we see the most total number of births in the U$.$S$.?$ Hint: First calculate the totals and save it as a new variable. Then, sort your dataset in descending order based on the total column. You can do this interactively in the data viewer by clicking on the arrows next to the variable names. To include the sorted result in your report you will need to use two new functions. First we use arrange$()$ to sorting the variable. Then we can arrange the data in a descending order with another function, desc$(),$ for descending order. The sample code is provided below.