**Core Concept**
The recommended daily protein intake is a critical aspect of nutrition, particularly for adult males, as it plays a crucial role in maintaining muscle mass, bone health, and overall well-being. The Indian Council of Medical Research (ICMR) provides guidelines for protein intake to ensure adequate nutrition.

**Why the Correct Answer is Right**
The ICMR recommends a daily protein intake of 1.0-1.2 grams per kilogram of body weight for adult males. This recommendation is based on the principle that protein is essential for muscle growth, repair, and maintenance. Adequate protein intake helps to prevent muscle wasting, particularly in older adults or those with underlying medical conditions. The recommended intake is also influenced by factors such as physical activity level, age, and overall health status.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it is too low to meet the daily protein requirements for adult males.
**Option B:** This option is incorrect as it is too high and may lead to excessive protein intake, potentially causing kidney strain and other health issues.
**Option C:** This option is incorrect as it is not a recommended protein intake level by the ICMR.

**Clinical Pearl / High-Yield Fact**
It's essential to note that protein requirements may vary depending on individual factors, such as age, sex, weight, and activity level. Healthcare professionals should consider these factors when recommending protein intake to patients.

**Correct Answer:** C. 1.0-1.2 grams per kilogram of body weight.