What are some principles for scalable data pipelines? Select an option that best answers this using the provided points below:

i$.$ Decrease processing time

ii$.$ Utilise pooling

iii. Know your requirements

iv$.$ Cache data

v$.$ Architect upfront

vi$.$ Parallelism and concurrency

ii$,$ iii and v

i and iv

i$,$ iii, v$,$ vi

i$,$ ii$,$ iii, and iv