Can anyone critique my y t channel it’s my1unknown and it has Peter from family guy as an icon

How do i attach images to my questions on

Which sentence contains a comma splice? marco rode to school on his bicycle this morning, he arrived an hour early. marco, who enjoys riding his bicycle to school, arrived just before the bell today. marco rode to school on his bicycle on monday, tuesday, and wednesday. marco, who rode to school on his bicycle this morning, arrived an hour early. mark this and returnsave and exit

When did gothic art peak what century.