A common error is to use double quotes rather than single quotes around a character literal, as in myChar = yielding a compler Similarly, a common error is to forget the quotes around a character literal, as in myChar - x, usually yielding a compiler error (unless also a declared variable, then perhaps yielding a logic error) CHALLENGE ACTIVITY 2.10.1: Printing a message with ints and chars. Print a message telling a user to press the letter ToQuit key numPresses times to quit. End with newline. Ex If letter ToQuit numPresses = 2, print: and Press the q key 2 times to quit. 1 #include int main(void) { char letter Toquit; int numPresses; scanf("%c ", &letterToquit); scanf("%d", &numPresses) /* Your solution goes here */ return ; 12 13 } Run Feedback Feedb CHALLENGE ACTIVITY 2.10.2: Outputting all combinations. Output all combinations of character variables a, b, and c. If a ='X, b y and c = '2, then the output is. xyz xzy yxz yzx zxy zyx Your code will be tested in three different programs, with a, b, c assigned with X, Y, Z, then with '#, 'S then with '1. 2.3. 1 winclude int main(void) { char a: char b; char c: scanf("%c ", &a); scanf("%c ", &b); scanf("%c ", &c); 13 14 /* Your solution goes here */ printf(" "); return @; 16 17 ) Run Feedb Feedback? ACTIVITY 2.10.3: Successive letters. Declare a character variable letterStart. Write a statement to read a letter from the user into letterStart, followed by statements that output that letter and the next letter in the alphabet. End with a newline. Hint: A letter is stored as its ASCI number, so adding 1 yields the next letter Sample output assuming the user enters 'd': de 1 #include int main(void) { 7. Your solution goes here */ return ; Run Feedback How was this section? 6 QI Provide feedback