Which of the variables will be read by the scanf below, if the user input is $3\mathrm{.}14,10,5\mathrm{.}3?$

int $a,c$;

float b;

scanf$(\%d\frac{\text{@}}{\text{@}}f\frac{d}{?},$&$a,$&$b,c)$;

Select one:

a$.$ Only a

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b$.$ a and c

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c$.$ a and b

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d$.a,b,$ and $c$ cross out

e$.$ None of them

cross out

Your answer is incorrect.

The correct answer is: a and b