While computing the values of limits of consistency indices, it is found that liquidity index, has a negative value.
Consider the following comments on this value:
1. Liquidity index cannot have a negative value and should be taken as zero.
2. Liquidity index can have a negative value.
3. The soil tested is in semisolid state and stiff
4. The soil tested is in medium soft state.
Which of these statement are correct?