When concluding a data analytics project, what should be included in the final report?

i$.$ Detailed descriptions of the data cleaning techniques applied

ii$.$ Recommendations for future research or analysis

iii. An overview of the statistical methods used

iv$.$ A summary of the key findings and insights

a$.($i$)$ and $($ii$)$

b$.($i$)$ and $($iv$)$

c$.($iii$)$ and $($iv$)$

d$.($ii$)$ and $($iii$)$