Explanation:

• Noble’s Helen:
o The Noble’s Helen is a butterfly recorded from the Namdapha National Park, Arunachal Pradesh. It is a swallowtail butterfly characterized by a much large dorsal white spot. It is an extremely rare butterfly recorded for the first time in India from the Namdapha National Park in Arunachal Pradesh. It has been disappearing from its previously known ranges from Myanmar and southern China to Vietnam.
• Caltoris bromus sadasiva :
o Cantoris bromus sadasiva is the first Bromus swift butterfly to be documented in the Western Ghats, in the state of Kerala. A group of lepidopterists has discovered it from the fringes of Akkulam and Vembanad lakes in Kerala. A skipper butterfly was last discovered nearly 75 years ago. Skipper, (family Hesperiidae), any of the approximately 3,500 species of insects (order Lepidoptera) that occur worldwide and are named for their fast, darting flight. Skippers are considered an intermediate form between butterflies and moths.
• Migratory Monarch:
o The migratory monarch butterfly, a sub-species of the monarch butterfly that travels around 4,000 kilometers across America each year, has been classified ‘endangered’ in the International Union for Conservation of Nature (IUCN) Red List of Threatened Species recently. The monarch butterfly species migrate every summer and autumn to and from areas on the Western coast of California or on the mountainous regions in Central Mexico.
• Hence option (c) is the correct answer.