Count NULL Values from multiple columns with SQL

Question

I have 3 columns let say A, B, and C. I need to count the NULL values in each column.

For example:

Answer 1

SELECT
(SELECT count(*) FROM my_table WHERE A is NULL) as A,
(SELECT count(*) FROM my_table WHERE B is NULL) as B,
(SELECT count(*) FROM my_table WHERE C is NULL) as C