What is the wrong with the following code snippet?

grade $=$ int$($input$("$Enter student grade: $"))$

if grade $<=90$ :

letterGrade $="$A$"$

if grade $<=80$ :

letterGrade $="$B$"$

if grade $<=70$ :

letterGrade $="$C$"$

if grade $<=60$ :

letterGrade $="$D$"$

else :

letterGrade $="$E$"$

print$($letterGrade$)$

Question $20$ options:

Anyone with a grade higher than $60$ will receive a $"$D$"$

The code block will not compile

Anyone with a grade higher than $60$ will receive a $"$E$"$

Nothing is wrong, students will get the correct grade