OS2 singlemode optical fiber supports which of the following wavelengths?

The appropriate answer is based on the wavelengths that OS2 singlemode optical fiber is designed to support. OS2 fiber is optimized for long-distance communication and is specifically intended to operate efficiently at longer wavelengths. The primary wavelengths for OS2 singlemode fiber are indeed 1310 nm and 1550 nm.

In addition to these primary wavelengths, OS2 fiber can also support the wavelength of 1383 nm, which is often used for specific applications, such as certain types of testing and measurements. This capability makes it versatile in handling various transmission scenarios.

Thus, selecting the wavelengths 1310, 1383, and 1550 nm accurately reflects the operational parameters of OS2 singlemode optical fiber, making it the correct choice.