Canada Post's guidelines for formatting envelopes do not include $\_\_\_\_\_\_\_\_.$

Question $5$ options:

$1)$

printing the postal code on the same line as the city and province or territory

$2)$

putting the stamp in the upper right corner

$3)$

omitting the return address on envelopes with pre$-$printed destination addresses

$4)$

using uppercase letters in the postal code