Final answer:
The signs for blue, green, gray, and purple do not use signs from the manual alphabet. The statement that signs for blue, green, gray, and purple in ASL all use signs from the manual alphabet is true. Each of these signs incorporates a handshape corresponding to a letter from the manual alphabet.
Step-by-step explanation:
The statement 'The signs for blue, green, gray, and purple all use signs from the manual alphabet' is False. The manual alphabet, also known as fingerspelling, is used in sign languages to represent letters of the alphabet. However, specific signs are used to represent colors like blue, green, gray, and purple, rather than using individual letters. For example, in American Sign Language (ASL), the sign for blue is made by forming the letter B with the hand and shaking it slightly, while the sign for green is made by forming the letter G and moving it in front of the chest.
The statement that signs for blue, green, gray, and purple in ASL all use signs from the manual alphabet is true. Each of these signs incorporates a handshape corresponding to a letter from the manual alphabet.
The question pertains to the signs for colors in American Sign Language (ASL) and whether they use signs from the manual alphabet. In ASL, some colors do indeed utilize handshapes from the manual alphabet. For example, the sign for blue uses the 'B' handshape from the manual alphabet, green uses the 'G' handshape, gray starts with a handshape that resembles a 'Q' or 'G', and purple uses the 'P' handshape. Therefore, the statement in the question can be considered true.