This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to replace the cutter blade in a foodsaver machine
Open the cover and locate the blade assembly from underneath.
Insert a small screwdriver or dull table knife under the retaining tab of the blade holder while gently pulling on the blade cartridge.
Be careful not to loose the small spring on the blade assembly.

Choose from:
(a). Disconnect the two aluminum clippers from the steel enclosure and remove the retaining tab that secures the blade to a safe position. Clear the drawer compartment of the blade holder by pulling on the plastic wrap that holds it in place with one hand.;
(b). Find the grate (top side) of the cutter blade unit. Be sure that no small parts are caught in the grate, except in the capacitor hole behind the cartridge unit.;
(c). You will be shocked by a pop of plastic with a sharp metal tip. Again, open the cover and locate the cutter blade assembly.;
(d). These pictures show the retaining tab and the notch on the blade cartridge that it snaps over. Find the similar retaining tab on the blade cartridge.;
The answer is:
(d).