Which has prokaryotic cells

A. Rose thorn

B. Lactobacillus

C. Beet root

D. Human kidney

The correct choice from given option is "B", "Lactobacillus"

It seems proper to explain a bit about the types of cells here. Two type of cells are:

1) Prokaryotic: these cells have no nucleus and they are small and simple.

2) Eukaryotic: These cells have a nucleus and are large and complex as opposed to prokaryotic.

"Lactobacillus" belong to first stated category here.