Two stable states of latches areLow input & high outputAstable & MonostableLow Output & high outputLow output & high input

The given options describe different states of latches. Let's analyze each option step by step:

1. Low input & high output: In this state, the input of the latch is low, while the output is high. This indicates that the latch is in a stable state, where it is holding the previous input value.

2. Astable & Monostable: These terms refer to different types of multivibrator circuits, not specific states of latches. Astable multivibrator produces a continuous oscillating output, while a monostable multivibrator produces a single pulse output.

3. Low Output & high output: This option seems contradictory as it states both low and high outputs simultaneously. It is not a valid state for a latch.

4. Low output & high input: In this state, the output of the latch is low, while the input is high. This indicates that the latch is in a stable state, where it is holding the previous input value.

So, the correct options for stable states of latches are:

• Low input & high output
• Low output & high input