In the United States the television broadcast standard is?

The correct answer is B. NTSC.

NTSC (National Television System Committee) is the analog television system used in the United States, Canada, Mexico, most of South America, some Caribbean islands, Japan, Taiwan, South Korea, the Philippines, and some Pacific islands. It is also used in some parts of Africa and Asia.

PAL (Phase Alternating Line) is an analog television system used in most of Europe, Africa, Australia, New Zealand, and parts of Asia. It is also used in some parts of South America.

SECAM (Séquentiel couleur à mémoire) is an analog television system used in France, most of Eastern Europe, and some parts of Africa and Asia.

RGB (Red, Green, Blue) is a color model used in computer graphics and television. It is a additive color model, which means that colors are created by adding together red, green, and blue light.