Which process below has the correct sign for ΔHº and correct classification (endothermic or exothermic)?

Photosynthesis (ΔH° = –, Endothermic)

Burning a piece of paper (ΔH° = +, Exothermic)

Baking soda (NaHCO3) neutralizes vinegar (ΔH° = –, Endothermic)

A fireworks display (ΔH° = –, Exothermic)