How to get question B using R

Question 4 (1 point) Saved An automatic machine in a manufacturing process is operating properly if the lengths of an important subcomponent it produces are normally distributed with a mean of 120 cm and a standard deviation of 3 cm. A B MachineA 111 114 117 120 123 126 129111 114 117 120 123 126 129 Subcomponent length (cm) Subcomponent length (cm) C D 111 114 117 120 123 126 129111 114 117 120 123 126 129 Subcomponent length (cm) Subcomponent length (cm)(a) Assuming the machine is working properly, which graph shows the area defining the probability of a subcomponent having a length greater than 123 cm? Write just the identifying letter with no punctuation, i.e. A B A (b) What is the probability of that outcome? Use R for the calculation, and report exactly 3 decimal places. For example, 0.010 and 0.321 are valid, but 0.01 and 0.3211 are not valid. A Question 5 (1 point)