Which of the following statements are true as regards python data types?

$17->$ character, $17\mathrm{.}0->$ float, $\text{'}17\text{'}->$ string

$17->$ double, $17\mathrm{.}0->$ character, $\text{'}17\text{'}->$ integer

$17,17\mathrm{.}0,$ and $\text{'}17\text{'}$ are all strings

$17->$ integer, $17\mathrm{.}0->$ double, $\text{'}17\text{'}->$ string

Question $4$

The rules about variable names in Python are:

can contain letters, numbers, and dashes, must start with a character

can contain letters, numbers, and underscores, must start with a character or underscore

can contain letters, numbers, and underscores, can start with a number

can only contain characters and underscores, must start with a character