Answer:
a) feeble-minded
Explanation:
The IQ tests which fully mean INTELLIGENT QUOTIENT were used to screen FEEBLE-MINDED from entry to the United States for the sole aim of keeping away those people that are mentally deficient out of the country reason been that a person or an individual who is FEEBLE-MINDED has low IQ ,they are intellectually weak, they cannot make decisions that are intelligent because they don't have the IQ to think in an intelligent way.
