The phrase $$Garbage in$,$ garbage out$$ means that:

a$.$ Using poor$-$quality data will lead to poor$-$quality results

b$.$ Sanitation is the next major trend in Analytics

c$.$ Analytical planning must consider inputs $($garbage in$)$ and outputs $($garbage out$)$

d$.$ An analyst should focus on the visualization of their data, so it doesn$$t look like garbage