Considering all costs, the cheapest source of energy for domestic use is? by Sunday | Jun 6 | Agricultural Science WAEC | 0 comments A. electricity B. sunlight C. biogas D. water Correct Answer: Option B B. sunlight Users Also Read These:Which of the following is the cheapest source of…BY definition, variable cost (VC) is related to…The cheapest source of funds available to a company…Which of the following is the cheapest for the…Total variable costs incurred during the week are?