Step 1: Read the question.
What is the literal meaning of the word Smritis?
Step 2: Recall the two sources.
In ancient Indian legal texts, there are Shrutis and Smritis.
Step 3: Break down the roots.
Shruti comes from shru, meaning to hear. Smriti comes from smri, meaning to remember. So Smriti literally means that which is remembered, or recollection.
Step 4: Eliminate the others.
Enouncing the rule of Dharma, critical commentary and digest, and decalogue describe roles or other texts, not the literal meaning of Smriti.
Step 5: Conclude.
The literal meaning of Smritis is recollection.
Answer: Recollection