If all inputs to a TTL NAND gate are low, what is the ON, OFF condition of each transistor in the circuit?

• Q1-ON, Q2-OFF, Q3-ON, Q4-OFF
• Q1-ON, Q2-ON, Q3-OFF, Q4-OFF
• Q1-OFF, Q2-OFF, Q3-ON, Q4-ON
• Q1-OFF, Q2-ON, Q3-OFF, Q4-ON