Why are yellow$-$and$-$red stripes such as prominent part of the El Clasico rivalry?

Group of answer choices

The yellow and red stripes represent the La Liga trophy that is the prize for the winner of the Spanish domestic league.

The yellow and red stripes represent the Franco regime in Catalonia, which wanted separation from Barcelona.

The yellow and red stripes represent Madrid, which is a region in Spain where Real Madrid is the capital. The region has often maintained a separatist movement from Spain $($i$.$e$.,$ wishing to be independent$).$

The yellow and red stripes represent Catalonia, which is a region in Spain where Barcelona is the capital. The region has often maintained a separatist movement from Spain $($i$.$e$.,$ wishing to be independent$).$