You are given a question or fill-in-the-blank question, two answer options (Option1 and Option2) and an Explanation. Your task is to find the correct answer (return the string of the correct option, not option1/2) for the given question from the given options and using explanation.

Question: Eric has a soccer ball and kicks it into a rock of roughly the same size. The rock doesn't move and the ball bounces away. The rock is _____ dense than the ball. 
 Option1: less 
 Option2: more 
 Explanation: The more tightly packed the particles inside the material are, the more dense we say they are.
more

Question: A person moving south from the North Pole will receive _____ direct sunlight. 
 Option1: more 
 Option2: less 
 Explanation: Areas near the equator are warmer than areas near the poles because they receive more direct sunlight.
more

Question: If a nucleus has many protons, it will also have a _____ nuclear force of attraction. 
 Option1: weaker 
 Option2: strong 
 Explanation: As more protons are added to the nucleus, the electromagnetic force of repulsion between them gets stronger, while the strong nuclear force of attraction between them gets weaker.

weaker