Q: Fact 1: Some insects can use their antennae to detect sound. Fact 2: When ears detect the vibrating air, signals are sent to the brain that are interpreted as sounds. Given the two facts above, some insets can use their antennae to detect what?

Choose from: 1). light waves. 2). photons. 3). Electrical energy. 4). vibrating air. 5). new lands. 6). water sources. 7). bending light rays. 8). electricity.
A:
4).