You will need drivers in order to enable USB tethering option. Access the official support page created by Alcatel for your phone and download the suite application. That application contains the drivers necessary to enable the USB tethering option.
Download page: http://www.alcatelonetouch.com/global-en/products/smartphones/one_touch_pop_c5.html
Once the app is installed, connect the phone and let Windows install the drivers. Enable the USB Tethering option and then enjoy the Internet on PC.
Note: data connection needs to be turned on in order to connect to the Internet.