Geometry

Question Analysis
This question requires the application of the combination formula for repetitive selection.
The main focus is on correctly substituting the values of (number of gift types) and (number of gifts in the bag) into the formula to find the number of combinations.

Key Concept Explanation
The formula is applicable when we can choose items from types of items with repetition allowed, and the order of selection doesn't matter.
Here, and .

Step - by - Step Solution
Calculate the factorials:

Click "Show Answer" to reveal the answer and analysis