Q3: the for loop should iterate with range up to len(companies) instead of len(key_names)

Hi,

In Q3: the for loop should iterate with range up to len(companies) instead of len(key_names), as we go through each companies.

It worked because in this case the lists key_names and companies have the same amount of elements, but if there was one more company for example, this one wouldn't be treated.

So we should have:

...

for i in range(len(companies)):

    ...