单选题 Good evening, ladies and gentlemen, and welcome. I'm sure we have all heard of the expression "Think green". Tonight we are going to talk about" Act green" in our everyday life. The best place to start, of course, is in nut home. Every day people all over the world are hurting the environment without even knowing it. For example, busy families buy paper napkins and plastic food wrap at the supermarket. This helps them save time oil housework. But after these things have been used, what happens to them? They go into the garbage can. In many places, especially in North America big cities are running out of places to throw their garbage. What can we do about it? How can we cut down on garbage? Now we can use plastic: napkins and plastic towels instead of paper towels. When we go grocery shopping we can choose products that are not over-packaged. For example, last week I bought a package of cookies in a hag. There was a plastic tree inside the bag, and then each cookie was in its own package on the tree in the bag. That's over-packaging. We should also take our own bags to the grocery store to carry the things home in.
What does the speaker's attitude towards over-packaging according to the speech?

• A. It helps us save time.
• B. It adds to the problem of too much garbage.
• C. It is a kind of waste of resources.
• D. It is a good way to make things look nic