Look at the table and answer the question

Marcus measured the size of a shadow as he moved a drumstick towards a light source.
He recorded his results on the table below.
Look at the table and answer the question.
Test number      Distance from light source(cm)       Size of shadow(cm)                  
1                        50                                                    6
2                        40                                                    14
3                        30                                                    25
4                        20                                                    34
5                       10                                                    42

a For each test Marcus moved the drumstick ...................... cm closer to the light source.
b The light shadow was biggest when the drumstick was ...................... from the light source
c What is the pattern in the shadow size? Complete this sentence.
As the drumstickmoved towards the light source the shadow ..................................................................................