Can somebody please answer this question number 6:)

What is the meaning of life and everything

Which of the following statements is true about taste bud preferences? a. taste buds respond exclusively to a certain taste sensation, like saltiness. b. taste buds have the ability to respond to all of the taste sensations. c. taste buds do not differentiate between bitter and salty sensations. d. taste buds have the capability to detect three taste sensations.

Working to improve the working conduit a factory is an example of