Geranium oil is known for which of the following benefits?

Geranium oil is recognized for its various benefits, particularly in promoting immune strengthening and enhancing skin health. This essential oil is rich in compounds that help to balance hormones, which can be beneficial for skin conditions such as acne, eczema, and dermatitis. Additionally, geranium oil possesses anti-inflammatory properties that can soothe skin irritation and promote an even skin tone. Its ability to support the immune system can also be attributed to its antimicrobial characteristics, helping the body to fend off infections and maintain overall health.

The other options, while they may relate to various natural remedies, do not specifically align with the primary known benefits of geranium oil. Hair growth stimulation and increasing bone density are more typically associated with different oils or supplements, while reducing water retention is generally linked to other herbal remedies. Therefore, the correct choice emphasizes the comprehensive health and skincare benefits of geranium oil.