The following query will select all the rows that are not "c", then group all the rows that are "c", sum their value, and add a single row representing the sum of "c". I hope that's what you mean.
SELECT *
FROM table1
WHERE Alternative != c
UNION
SELECT Alternative, Sum(Total) as Total, Sum(Male) as Male, Sum(Female) as Female
FROM table1
WHERE Alternative = c
GROUP BY Alternative
If you just want to group anything that has multiple "Alternative" appearances, just use:
SELECT Alternative, Sum(Total) as Total, Sum(Male) as Male, Sum(Female) as Female
FROM table1
GROUP BY Alternative