Provide an interpretation for coefficient alpha $($a $=\mathrm{.}78)$ for the acquaintance helping scale consisting of items $1-3.$

Coefficient alpha is acceptable, indicating that items $1-3$ seem to be consistently measuring the same underlying construct.

Coefficient alpha is unacceptable, indicating that items $1-3$ are not consistently measuring the same underlying construct.

Coefficient alpha is questionable, indicating that items $1-3$ may or may not be measuring the same underlying construct.

Cannot be determined