Read this paragraph. What is the central idea of the paragraph?
Vending machines have a long history of selling various
items, from bubble gum to insurance policies. In the
1970s they began selling mostly junk food, and the
machines popped up everywhere. For years, vending
machines supplied things like high-calorie chips,
cookies, candy bars, and sugary sodas. Thankfully, in
the last few years, vending machines have begun to
expand their offerings. Many companies now have
vending machines stocked with healthy food choices
Some vending machines even sell fresh fruit!
O Vending machines are famous for selling junk food
to people and destroying healthy eating
Though chips and cookies are high in calories, they
are convenient to purchase from vending machines
Though fruit is best purchased at farm stands or
grocery stores, it is now available in vending
machines
O Vending machines used to contain mainly junk food,
but they are changing to include healthy choices.