Question

look at the item code and select the correct option below.
rules view details
valid codes contain 5 - 7 characters
a开头的代码 → bin 11
z开头的代码 → bin 12
结尾是1的代码 → bin 21
结尾是2的代码 → bin 22
蓝色满格图标 → bin full
8 characters → wrong code
sm9tl1
bin 11 部分满格图标 单选框
bin 12 满格图标 单选框
bin 21 满格图标 单选框
bin 22 部分满格图标 单选框
bin full 单选框
wrong code 单选框
submit

Explanation:

Step1: Check code length

The code "SM9tL1" has 6 characters, which is between 5 - 7, so length is valid.

Step2: Check last character

The last character is '1'. From rules, codes ending with '1' go to Bin 21. Also, check bin full/wrong code: no blue bars (bin full) and length not 8 (wrong code). So it should go to Bin 21.

Answer:

Bin 21 (with its corresponding option, assuming the option for Bin 21 is as per the interface, e.g., if the Bin 21 option is the one with the blue bars and label Bin 21, that's the correct choice)