The second point is correct and the answer is not present in the given multiple choice answers.

1. They possessed great palaces and temples.
The 1st statement is the wrong statement.

No temples or religious places have been discovered from Harappan cities.
No building has been discovered at any Harappan site that can be positively identified as a temple, but the Great Bath at Mohenjodaro may have been used for ritual purposes

2. They worshiped both male and female deities.
The 2nd statement is the correct statement.

They worshipped Mother Goddess as a symbol of fertility, as suggested by figurines resembling female deity.

They worshipped Shiva, as suggested by a seal with a male figure sitting in a yogic posture with a trident-like headgear, surrounded by animals, which has a lot of similarities with Shiva.

Another seal with carvings of a seated figure of a male god suggests the traditional image of Pasupati Mahadeva.

3. They employed horse-drawn chariots in warfare.

The 3rd statement is the wrong statement.

According to Indus seals, domesticated animals were mostly goats, buffaloes, oxen, elephants, dogs, and camels, but Harappans were not familiar with the horse.

According to the stockbreeding section of TMH general studies manual, chapter history of India, page 7, the camel was rare and the horse was probably not known to the Harappans.