**Explanation:**

The wife of Rama was Sita. She is one of the central characters in the Hindu epic Ramayana. Here is a detailed explanation of why the correct answer is option 'C':

**1. Ramayana:**
Ramayana is an ancient Hindu epic that narrates the story of Lord Rama, his wife Sita, and his adventures. It is attributed to the sage Valmiki and is considered one of the two major Sanskrit epics of ancient Indian literature.

**2. Rama and Sita's Marriage:**
According to the Ramayana, Rama is the seventh avatar of Lord Vishnu, and Sita is the incarnation of Goddess Lakshmi. Rama and Sita's marriage is an important event in the epic. Rama's father, King Dasharatha, organized a Swayamvar (a ceremony where a princess chooses her husband) for Sita, and Rama won her hand by breaking the divine bow of Lord Shiva.

**3. Sita's Character:**
Sita is portrayed as an ideal wife and devoted to Rama. She accompanies Rama during his exile to the forest and stands by his side through various trials and tribulations. Sita's abduction by the demon king Ravana and Rama's subsequent efforts to rescue her form the major plot points of the Ramayana.

**4. Sita's Abduction and Rescue:**
Ravana, the antagonist of the Ramayana, kidnaps Sita and takes her to Lanka, his kingdom. Rama, aided by his loyal devotee Hanuman and an army of monkeys, embarks on a journey to rescue Sita. Eventually, Rama defeats Ravana in a fierce battle and rescues Sita.

**5. Agni Pariksha (Trial by Fire):**
After Sita's rescue, doubts are raised about her chastity during her captivity. To prove her purity, Sita undergoes the Agni Pariksha, a trial by fire. She emerges unscathed, thus vindicating her loyalty and purity.

**6. Sita's Return to Ayodhya:**
After the rescue and the successful completion of their exile, Rama, Sita, and Lakshmana return to Ayodhya, where Rama is crowned as the king. However, due to societal rumors questioning Sita's purity, Rama reluctantly sends her into exile again.

**7. Sita's Fate:**
Sita seeks refuge in the hermitage of sage Valmiki, where she gives birth to her twin sons, Luv and Kush. In due course, Rama learns the truth about Sita's purity and calls for her return. However, Sita, feeling betrayed, chooses to return to the earth and asks Mother Earth to take her back. She disappears into the earth, leaving Rama grief-stricken.

In conclusion, Sita is the wife of Rama according to the Hindu epic Ramayana.