Product development process
do an internet search of the new product development process of any product of your choice, and analyze the process for developing the product. review the reasons why new products fail and make two specific recommendations to improve the high failure rate of new products.

which sentences ? that question is incomplete

i think it's d because a "rythem" is a

1)a particular type of pattern formed by rhythm.

2)a strong, regular, repeated pattern of movement or sound.

3) the systematic arrangement of musical sounds, principally according to duration and periodic stress.

so, d mabye.