$1.$ In the project that you just created, do the following $(7$ points$)$:

a$.$

Use the built$-$in function Console.WriteLine$()$ to print $$This is the first question$$ in the screen $(1$ point$).$

b$.$

Create three variables of the String data type, named firstName, lastName, and fullName, respectively $(1$ point$).$

c$.$

Use the built$-$in function Console.ReadLine$()$ to get the user$$s input for firstName and lastName. You need to print some hint information before accepting user$$s input. For instance, you need to print $$Please enter your first name$$ before accepting user's input for firstName, same for lastName $(1$ point$).$

d$.$

Concatenate the variables firstNmae and lastName together, and assign the result to the variable fullName, please be noticed that there is a space between firstName and lastName in the result $(1$ point$).$

e$.$

Use the fullName to display the output in the screen as follows $($for instance, if fullName $=$Xichen Zhang$)$:

$$Hello$,$ Xichen Zhang, have a nice day!$$

You need to use three different ways to do the printing.

o

The first way is to use the index of the variable to print the result, i$.$e$.,....\{0\}....,$ variable$\_$name$(1$ point$).$

o The second way is to use the $$&$$ to print the result $(1$ point$).$

o The third way is to use the $$$$$ to print the result $(1$ point$).$

f$.$

Print an empty line using the built$-$in function Console.WriteLine$().$