A food handler who spends an entire shift forming hamburger patties should change gloves a after 1 hour, because the gloves may quickly build up pathogens. b every 6 hours, to avoid wasting gloves. C every 4 hours during continual use, and more often if needed. d at the end of the shift.

## Step 1<br />This problem is about food safety and hygiene practices in a food handling environment. The question is asking when a food handler should change gloves during their shift. The options provided are:<br />a) after 1 hour, because the gloves may quickly build up pathogens.<br />b) every 6 hours, to avoid wasting gloves.<br />c) every 4 hours during continual use, and more often if needed.<br />d) at the end of the shift.<br /><br />## Step 2<br />The correct answer is option c) every 4 hours during continual use, and more often if needed. This is because gloves can become contaminated over time, even if they appear clean. Therefore, it is important to change gloves frequently to prevent the spread of pathogens.<br /><br />## Step 3<br />The other options are not correct because they either do not provide a frequent enough change of gloves (option a and b) or they do not take into account the potential for contamination (option d).