There are four options in this question.
According to the documentation on tensorflow.org, the the correct argument is learning_rate, which can be set with a floating-point value.
In the quiz, the options are:
You can’t set it
Use the RateOfLearning property
Use the lr property
Use the Rate property
None of these appear to be correct. Is this intentional?
I feel your pain, but it’s a reality of life in this world. You will frequently run into cases where one package or another has evolved in a non-backwards-compatible way that breaks some legacy code. It’s a good skill to have in the toolbox to be able to sleuth these out.