Which sentence uses colons correctly?
O John packed the following for his trip: an umbrella, a blanket, a sleeping bag, and a tarp.
O John packed the following for his trip: an umbrella: a blanket: a sleeping bag and a tarp.
O John packed the following for his trip an umbrella, a blanket a sleeping bag, and a tarp.
O John packed the following for his trip, an umbrella, a blanket, a sleeping bag, and a tarp.