Which of the following is an appropriate guideline for waste disposal? O a. Clean trash cans regularly to remove drips and crumbs that provide food for pests Ob. Do not use plastic liners in trash cans, since this is an unnecessary waste of plastic O c. Only take trash to the dumpster once per day, since opening doors often allows pests in Od. Leave some trash by the dumpster to draw pests to the garbage instead of your facility