Which line in the following program causes a runtime error? sales = { "apples": 0, "lemonade": 0 }
sales["apples"] = sales["apples"] + 1
del sales["lemonade"]
print(len(sales["apples"]))
Group of answer choices

sales = { "apples": 0, "lemonade": 0 }

print(len(sales["apples"]))

del sales["lemonade"]

sales["apples"] = sales["apples"] + 1